# exifTags

htag: 0x00ff
ifd: Image
key: Exif.Image.SubfileType
type: Short
description:
A general indication of the kind of data contained in this subfile. This field is deprecated. The NewSubfileType field should be used instead.


htag: 0x0100
ifd: Image
key: Exif.Image.ImageWidth
type: Long
description:
The number of columns of image data, equal to the number of pixels per row. In JPEG compressed data a JPEG marker is used instead of this tag.


htag: 0x0101
ifd: Image
key: Exif.Image.ImageLength
type: Long
description:
The number of rows of image data. In JPEG compressed data a JPEG marker is used instead of this tag.


htag: 0x0102
ifd: Image
key: Exif.Image.BitsPerSample
type: Short
description:
The number of bits per image component. In this standard each component of the image is 8 bits, so the value for this tag is 8. See also <SamplesPerPixel>. In JPEG compressed data a JPEG marker is used instead of this tag.


htag: 0x0103
ifd: Image
key: Exif.Image.Compression
type: Short
description:
The compression scheme used for the image data. When a primary image is JPEG compressed, this designation is not necessary and is omitted. When thumbnails use JPEG compression, this tag value is set to 6.


htag: 0x0107
ifd: Image
key: Exif.Image.Thresholding
type: Short
description:
For black and white TIFF files that represent shades of gray, the technique used to convert from gray to black and white pixels.


htag: 0x0108
ifd: Image
key: Exif.Image.CellWidth
type: Short
description:
The width of the dithering or halftoning matrix used to create a dithered or halftoned bilevel file.


htag: 0x0109
ifd: Image
key: Exif.Image.CellLength
type: Short
description:
The length of the dithering or halftoning matrix used to create a dithered or halftoned bilevel file.


htag: 0x010e
ifd: Image
key: Exif.Image.ImageDescription
type: Ascii
description:
A character string giving the title of the image. It may be a comment such as "1988 company picnic" or the like. Two-bytes character codes cannot be used. When a 2-bytes code is necessary, the Exif Private tag <UserComment> is to be used.


htag: 0x010f
ifd: Image
key: Exif.Image.Make
type: Ascii
description:
The manufacturer of the recording equipment. This is the manufacturer of the DSC, scanner, video digitizer or other equipment that generated the image. When the field is left blank, it is treated as unknown.


htag: 0x0110
ifd: Image
key: Exif.Image.Model
type: Ascii
description:
The model name or model number of the equipment. This is the model name or number of the DSC, scanner, video digitizer or other equipment that generated the image. When the field is left blank, it is treated as unknown.


htag: 0x0111
ifd: Image
key: Exif.Image.StripOffsets
type: Long
description:
For each strip, the byte offset of that strip. It is recommended that this be selected so the number of strip bytes does not exceed 64 Kbytes. With JPEG compressed data this designation is not needed and is omitted. See also <RowsPerStrip> and <StripByteCounts>.


htag: 0x0115
ifd: Image
key: Exif.Image.SamplesPerPixel
type: Short
description:
The number of components per pixel. Since this standard applies to RGB and YCbCr images, the value set for this tag is 3. In JPEG compressed data a JPEG marker is used instead of this tag.


htag: 0x0116
ifd: Image
key: Exif.Image.RowsPerStrip
type: Long
description:
The number of rows per strip. This is the number of rows in the image of one strip when an image is divided into strips. With JPEG compressed data this designation is not needed and is omitted. See also <StripOffsets> and <StripByteCounts>.


htag: 0x0117
ifd: Image
key: Exif.Image.StripByteCounts
type: Long
description:
The total number of bytes in each strip. With JPEG compressed data this designation is not needed and is omitted.


htag: 0x011a
ifd: Image
key: Exif.Image.XResolution
type: Rational
description:
The number of pixels per <ResolutionUnit> in the <ImageWidth> direction. When the image resolution is unknown, 72 [dpi] is designated.


htag: 0x011b
ifd: Image
key: Exif.Image.YResolution
type: Rational
description:
The number of pixels per <ResolutionUnit> in the <ImageLength> direction. The same value as <XResolution> is designated.


htag: 0x011c
ifd: Image
key: Exif.Image.PlanarConfiguration
type: Short
description:
Indicates whether pixel components are recorded in a chunky or planar format. In JPEG compressed files a JPEG marker is used instead of this tag. If this field does not exist, the TIFF default of 1 (chunky) is assumed.


htag: 0x0128
ifd: Image
key: Exif.Image.ResolutionUnit
type: Short
description:
The unit for measuring <XResolution> and <YResolution>. The same unit is used for both <XResolution> and <YResolution>. If the image resolution is unknown, 2 (inches) is designated.


htag: 0x012d
ifd: Image
key: Exif.Image.TransferFunction
type: Short
description:
A transfer function for the image, described in tabular style. Normally this tag is not necessary, since color space is specified in the color space information tag (<ColorSpace>).


htag: 0x0131
ifd: Image
key: Exif.Image.Software
type: Ascii
description:
This tag records the name and version of the software or firmware of the camera or image input device used to generate the image. The detailed format is not specified, but it is recommended that the example shown below be followed. When the field is left blank, it is treated as unknown.


htag: 0x0132
ifd: Image
key: Exif.Image.DateTime
type: Ascii
description:
The date and time of image creation. In Exif standard, it is the date and time the file was changed.


htag: 0x013b
ifd: Image
key: Exif.Image.Artist
type: Ascii
description:
This tag records the name of the camera owner, photographer or image creator. The detailed format is not specified, but it is recommended that the information be written as in the example below for ease of Interoperability. When the field is left blank, it is treated as unknown. Ex.) "Camera owner, John Smith; Photographer, Michael Brown; Image creator, Ken James"


htag: 0x013d
ifd: Image
key: Exif.Image.Predictor
type: Short
description:
A predictor is a mathematical operator that is applied to the image data before an encoding scheme is applied.


htag: 0x013e
ifd: Image
key: Exif.Image.WhitePoint
type: Rational
description:
The chromaticity of the white point of the image. Normally this tag is not necessary, since color space is specified in the colorspace information tag (<ColorSpace>).


htag: 0x013f
ifd: Image
key: Exif.Image.PrimaryChromaticities
type: Rational
description:
The chromaticity of the three primary colors of the image. Normally this tag is not necessary, since colorspace is specified in the colorspace information tag (<ColorSpace>).


htag: 0x0140
ifd: Image
key: Exif.Image.ColorMap
type: Short
description:
A color map for palette color images. This field defines a Red-Green-Blue color map (often called a lookup table) for palette-color images. In a palette-color image, a pixel value is used to index into an RGB lookup table.


htag: 0x0141
ifd: Image
key: Exif.Image.HalftoneHints
type: Short
description:
The purpose of the HalftoneHints field is to convey to the halftone function the range of gray levels within a colorimetrically-specified image that should retain tonal detail.


htag: 0x0144
ifd: Image
key: Exif.Image.TileOffsets
type: Short
description:
For each tile, the byte offset of that tile, as compressed and stored on disk. The offset is specified with respect to the beginning of the TIFF file. Note that this implies that each tile has a location independent of the locations of other tiles.


htag: 0x0145
ifd: Image
key: Exif.Image.TileByteCounts
type: Short
description:
For each tile, the number of (compressed) bytes in that tile. See TileOffsets for a description of how the byte counts are ordered.


htag: 0x0152
ifd: Image
key: Exif.Image.ExtraSamples
type: Short
description:
Specifies that each pixel has m extra components whose interpretation is defined by one of the values listed below.


htag: 0x015a
ifd: Image
key: Exif.Image.Indexed
type: Short
description:
Indexed images are images where the 'pixels' do not represent color values, but rather an index (usually 8-bit) into a separate color table, the ColorMap.


htag: 0x015b
ifd: Image
key: Exif.Image.JPEGTables
type: Undefined
description:
This optional tag may be used to encode the JPEG quantization and Huffman tables for subsequent use by the JPEG decompression process.


htag: 0x015f
ifd: Image
key: Exif.Image.OPIProxy
type: Short
description:
OPIProxy gives information concerning whether this image is a low-resolution proxy of a high-resolution image (Adobe OPI).


htag: 0x0201
ifd: Image
key: Exif.Image.JPEGInterchangeFormat
type: Long
description:
The offset to the start byte (SOI) of JPEG compressed thumbnail data. This is not used for primary image JPEG data.


htag: 0x0202
ifd: Image
key: Exif.Image.JPEGInterchangeFormatLength
type: Long
description:
The number of bytes of JPEG compressed thumbnail data. This is not used for primary image JPEG data. JPEG thumbnails are not divided but are recorded as a continuous JPEG bitstream from SOI to EOI. Appn and COM markers should not be recorded. Compressed thumbnails must be recorded in no more than 64 Kbytes, including all other data to be recorded in APP1.


htag: 0x0208
ifd: Image
key: Exif.Image.JPEGDCTables
type: Long
description:
This Field points to a list of offsets to the DC Huffman tables or the lossless Huffman tables, one per component.


htag: 0x0211
ifd: Image
key: Exif.Image.YCbCrCoefficients
type: Rational
description:
The matrix coefficients for transformation from RGB to YCbCr image data. No default is given in TIFF; but here the value given in Appendix E, "Color Space Guidelines", is used as the default. The color space is declared in a color space information tag, with the default being the value that gives the optimal image characteristics Interoperability this condition.


htag: 0x0212
ifd: Image
key: Exif.Image.YCbCrSubSampling
type: Short
description:
The sampling ratio of chrominance components in relation to the luminance component. In JPEG compressed data a JPEG marker is used instead of this tag.


htag: 0x0213
ifd: Image
key: Exif.Image.YCbCrPositioning
type: Short
description:
The position of chrominance components in relation to the luminance component. This field is designated only for JPEG compressed data or uncompressed YCbCr data. The TIFF default is 1 (centered); but when Y:Cb:Cr = 4:2:2 it is recommended in this standard that 2 (co-sited) be used to record data, in order to improve the image quality when viewed on TV systems. When this field does not exist, the reader shall assume the TIFF default. In the case of Y:Cb:Cr = 4:2:0, the TIFF default (centered) is recommended. If the reader does not have the capability of supporting both kinds of <YCbCrPositioning>, it shall follow the TIFF default regardless of the value in this field. It is preferable that readers be able to support both centered and co-sited positioning.


htag: 0x0214
ifd: Image
key: Exif.Image.ReferenceBlackWhite
type: Rational
description:
The reference black point value and reference white point value. No defaults are given in TIFF, but the values below are given as defaults here. The color space is declared in a color space information tag, with the default being the value that gives the optimal image characteristics Interoperability these conditions.


htag: 0x800d
ifd: Image
key: Exif.Image.ImageID
type: Ascii
description:
ImageID is the full pathname of the original, high-resolution image, or any other identifying string that uniquely identifies the original image (Adobe OPI).


htag: 0x828d
ifd: Image
key: Exif.Image.CFARepeatPatternDim
type: Short
description:
Contains two values representing the minimum rows and columns to define the repeating patterns of the color filter array


htag: 0x828e
ifd: Image
key: Exif.Image.CFAPattern
type: Byte
description:
Indicates the color filter array (CFA) geometric pattern of the image sensor when a one-chip color area sensor is used. It does not apply to all sensing methods


htag: 0x8298
ifd: Image
key: Exif.Image.Copyright
type: Ascii
description:
Copyright information. In this standard the tag is used to indicate both the photographer and editor copyrights. It is the copyright notice of the person or organization claiming rights to the image. The Interoperability copyright statement including date and rights should be written in this field; e.g., "Copyright, John Smith, 19xx. All rights reserved.". In this standard the field records both the photographer and editor copyrights, with each recorded in a separate part of the statement. When there is a clear distinction between the photographer and editor copyrights, these are to be written in the order of photographer followed by editor copyright, separated by NULL (in this case since the statement also ends with a NULL, there are two NULL codes). When only the photographer copyright is given, it is terminated by one NULL code. When only the editor copyright is given, the photographer copyright part consists of one space followed by a terminating NULL code, then the editor copyright is given. When the field is left blank, it is treated as unknown.


htag: 0x8769
ifd: Image
key: Exif.Image.ExifTag
type: Long
description:
A pointer to the Exif IFD. Interoperability, Exif IFD has the same structure as that of the IFD specified in TIFF. ordinarily, however, it does not contain image data as in the case of TIFF.


htag: 0x8825
ifd: Image
key: Exif.Image.GPSTag
type: Long
description:
A pointer to the GPS Info IFD. The Interoperability structure of the GPS Info IFD, like that of Exif IFD, has no image data.


htag: 0x882a
ifd: Image
key: Exif.Image.TimeZoneOffset
type: SShort
description:
This optional tag encodes the time zone of the camera clock (relative to Greenwich Mean Time) used to create the DataTimeOriginal tag-value when the picture was taken. It may also contain the time zone offset of the clock used to create the DateTime tag-value when the image was modified.


htag: 0x9216
ifd: Image
key: Exif.Image.TIFFEPStandardID
type: Byte
description:
Contains four ASCII characters representing the TIFF/EP standard version of a TIFF/EP file, eg '1', '0', '0', '0'


htag: 0xc612
ifd: Image
key: Exif.Image.DNGVersion
type: Byte
description:
This tag encodes the DNG four-tier version number. For files compliant with version 1.1.0.0 of the DNG specification, this tag should contain the bytes: 1, 1, 0, 0.


htag: 0xc613
ifd: Image
key: Exif.Image.DNGBackwardVersion
type: Byte
description:
This tag specifies the oldest version of the Digital Negative specification for which a file is compatible. Readers shouldnot attempt to read a file if this tag specifies a version number that is higher than the version number of the specification the reader was based on. In addition to checking the version tags, readers should, for all tags, check the types, counts, and values, to verify it is able to correctly read the file.


htag: 0xc614
ifd: Image
key: Exif.Image.UniqueCameraModel
type: Ascii
description:
Defines a unique, non-localized name for the camera model that created the image in the raw file. This name should include the manufacturer's name to avoid conflicts, and should not be localized, even if the camera name itself is localized for different markets (see LocalizedCameraModel). This string may be used by reader software to index into per-model preferences and replacement profiles.


htag: 0xc615
ifd: Image
key: Exif.Image.LocalizedCameraModel
type: Byte
description:
Similar to the UniqueCameraModel field, except the name can be localized for different markets to match the localization of the camera name.


htag: 0xc616
ifd: Image
key: Exif.Image.CFAPlaneColor
type: Byte
description:
Provides a mapping between the values in the CFAPattern tag and the plane numbers in LinearRaw space. This is a required tag for non-RGB CFA images.


htag: 0xc618
ifd: Image
key: Exif.Image.LinearizationTable
type: Short
description:
Describes a lookup table that maps stored values into linear values. This tag is typically used to increase compression ratios by storing the raw data in a non-linear, more visually uniform space with fewer total encoding levels. If SamplesPerPixel is not equal to one, this single table applies to all the samples for each pixel.


htag: 0xc61a
ifd: Image
key: Exif.Image.BlackLevel
type: Rational
description:
Specifies the zero light (a.k.a. thermal black or black current) encoding level, as a repeating pattern. The origin of this pattern is the top-left corner of the ActiveArea rectangle. The values are stored in row-column-sample scan order.


htag: 0xc61b
ifd: Image
key: Exif.Image.BlackLevelDeltaH
type: SRational
description:
If the zero light encoding level is a function of the image column, BlackLevelDeltaH specifies the difference between the zero light encoding level for each column and the baseline zero light encoding level. If SamplesPerPixel is not equal to one, this single table applies to all the samples for each pixel.


htag: 0xc61c
ifd: Image
key: Exif.Image.BlackLevelDeltaV
type: SRational
description:
If the zero light encoding level is a function of the image row, this tag specifies the difference between the zero light encoding level for each row and the baseline zero light encoding level. If SamplesPerPixel is not equal to one, this single table applies to all the samples for each pixel.


htag: 0xc61d
ifd: Image
key: Exif.Image.WhiteLevel
type: Short
description:
This tag specifies the fully saturated encoding level for the raw sample values. Saturation is caused either by the sensor itself becoming highly non-linear in response, or by the camera's analog to digital converter clipping.


htag: 0xc61e
ifd: Image
key: Exif.Image.DefaultScale
type: Rational
description:
DefaultScale is required for cameras with non-square pixels. It specifies the default scale factors for each direction to convert the image to square pixels. Typically these factors are selected to approximately preserve total pixel count. For CFA images that use CFALayout equal to 2, 3, 4, or 5, such as the Fujifilm SuperCCD, these two values should usually differ by a factor of 2.0.


htag: 0xc61f
ifd: Image
key: Exif.Image.DefaultCropOrigin
type: Short
description:
Raw images often store extra pixels around the edges of the final image. These extra pixels help prevent interpolation artifacts near the edges of the final image. DefaultCropOrigin specifies the origin of the final image area, in raw image coordinates (i.e., before the DefaultScale has been applied), relative to the top-left corner of the ActiveArea rectangle.


htag: 0xc620
ifd: Image
key: Exif.Image.DefaultCropSize
type: Short
description:
Raw images often store extra pixels around the edges of the final image. These extra pixels help prevent interpolation artifacts near the edges of the final image. DefaultCropSize specifies the size of the final image area, in raw image coordinates (i.e., before the DefaultScale has been applied).


htag: 0xc621
ifd: Image
key: Exif.Image.ColorMatrix1
type: SRational
description:
ColorMatrix1 defines a transformation matrix that converts XYZ values to reference camera native color space values, under the first calibration illuminant. The matrix values are stored in row scan order. The ColorMatrix1 tag is required for all non-monochrome DNG files.


htag: 0xc622
ifd: Image
key: Exif.Image.ColorMatrix2
type: SRational
description:
ColorMatrix2 defines a transformation matrix that converts XYZ values to reference camera native color space values, under the second calibration illuminant. The matrix values are stored in row scan order.


htag: 0xc623
ifd: Image
key: Exif.Image.CameraCalibration1
type: SRational
description:
CameraCalibration1 defines a calibration matrix that transforms reference camera native space values to individual camera native space values under the first calibration illuminant. The matrix is stored in row scan order. This matrix is stored separately from the matrix specified by the ColorMatrix1 tag to allow raw converters to swap in replacement color matrices based on UniqueCameraModel tag, while still taking advantage of any per-individual camera calibration performed by the camera manufacturer.


htag: 0xc624
ifd: Image
key: Exif.Image.CameraCalibration2
type: SRational
description:
CameraCalibration2 defines a calibration matrix that transforms reference camera native space values to individual camera native space values under the second calibration illuminant. The matrix is stored in row scan order. This matrix is stored separately from the matrix specified by the ColorMatrix2 tag to allow raw converters to swap in replacement color matrices based on UniqueCameraModel tag, while still taking advantage of any per-individual camera calibration performed by the camera manufacturer.


htag: 0xc625
ifd: Image
key: Exif.Image.ReductionMatrix1
type: SRational
description:
ReductionMatrix1 defines a dimensionality reduction matrix for use as the first stage in converting color camera native space values to XYZ values, under the first calibration illuminant. This tag may only be used if ColorPlanes is greater than 3. The matrix is stored in row scan order.


htag: 0xc626
ifd: Image
key: Exif.Image.ReductionMatrix2
type: SRational
description:
ReductionMatrix2 defines a dimensionality reduction matrix for use as the first stage in converting color camera native space values to XYZ values, under the second calibration illuminant. This tag may only be used if ColorPlanes is greater than 3. The matrix is stored in row scan order.


htag: 0xc627
ifd: Image
key: Exif.Image.AnalogBalance
type: Rational
description:
Normally the stored raw values are not white balanced, since any digital white balancing will reduce the dynamic range of the final image if the user decides to later adjust the white balance; however, if camera hardware is capable of white balancing the color channels before the signal is digitized, it can improve the dynamic range of the final image. AnalogBalance defines the gain, either analog (recommended) or digital (not recommended) that has been applied the stored raw values.


htag: 0xc628
ifd: Image
key: Exif.Image.AsShotNeutral
type: Short
description:
Specifies the selected white balance at time of capture, encoded as the coordinates of a perfectly neutral color in linear reference space values. The inclusion of this tag precludes the inclusion of the AsShotWhiteXY tag.


htag: 0xc629
ifd: Image
key: Exif.Image.AsShotWhiteXY
type: Rational
description:
Specifies the selected white balance at time of capture, encoded as x-y chromaticity coordinates. The inclusion of this tag precludes the inclusion of the AsShotNeutral tag.


htag: 0xc62a
ifd: Image
key: Exif.Image.BaselineExposure
type: SRational
description:
Camera models vary in the trade-off they make between highlight headroom and shadow noise. Some leave a significant amount of highlight headroom during a normal exposure. This allows significant negative exposure compensation to be applied during raw conversion, but also means normal exposures will contain more shadow noise. Other models leave less headroom during normal exposures. This allows for less negative exposure compensation, but results in lower shadow noise for normal exposures. Because of these differences, a raw converter needs to vary the zero point of its exposure compensation control from model to model. BaselineExposure specifies by how much (in EV units) to move the zero point. Positive values result in brighter default results, while negative values result in darker default results.


htag: 0xc62b
ifd: Image
key: Exif.Image.BaselineNoise
type: Rational
description:
Specifies the relative noise level of the camera model at a baseline ISO value of 100, compared to a reference camera model. Since noise levels tend to vary approximately with the square root of the ISO value, a raw converter can use this value, combined with the current ISO, to estimate the relative noise level of the current image.


htag: 0xc62c
ifd: Image
key: Exif.Image.BaselineSharpness
type: Rational
description:
Specifies the relative amount of sharpening required for this camera model, compared to a reference camera model. Camera models vary in the strengths of their anti-aliasing filters. Cameras with weak or no filters require less sharpening than cameras with strong anti-aliasing filters.


htag: 0xc62d
ifd: Image
key: Exif.Image.BayerGreenSplit
type: Long
description:
Only applies to CFA images using a Bayer pattern filter array. This tag specifies, in arbitrary units, how closely the values of the green pixels in the blue/green rows track the values of the green pixels in the red/green rows. A value of zero means the two kinds of green pixels track closely, while a non-zero value means they sometimes diverge. The useful range for this tag is from 0 (no divergence) to about 5000 (quite large divergence).


htag: 0xc62e
ifd: Image
key: Exif.Image.LinearResponseLimit
type: Rational
description:
Some sensors have an unpredictable non-linearity in their response as they near the upper limit of their encoding range. This non-linearity results in color shifts in the highlight areas of the resulting image unless the raw converter compensates for this effect. LinearResponseLimit specifies the fraction of the encoding range above which the response may become significantly non-linear.


htag: 0xc630
ifd: Image
key: Exif.Image.LensInfo
type: Rational
description:
Contains information about the lens that captured the image. If the minimum f-stops are unknown, they should be encoded as 0/0.


htag: 0xc631
ifd: Image
key: Exif.Image.ChromaBlurRadius
type: Rational
description:
ChromaBlurRadius provides a hint to the DNG reader about how much chroma blur should be applied to the image. If this tag is omitted, the reader will use its default amount of chroma blurring. Normally this tag is only included for non-CFA images, since the amount of chroma blur required for mosaic images is highly dependent on the de-mosaic algorithm, in which case the DNG reader's default value is likely optimized for its particular de-mosaic algorithm.


htag: 0xc632
ifd: Image
key: Exif.Image.AntiAliasStrength
type: Rational
description:
Provides a hint to the DNG reader about how strong the camera's anti-alias filter is. A value of 0.0 means no anti-alias filter (i.e., the camera is prone to aliasing artifacts with some subjects), while a value of 1.0 means a strong anti-alias filter (i.e., the camera almost never has aliasing artifacts).


htag: 0xc634
ifd: Image
key: Exif.Image.DNGPrivateData
type: Byte
description:
Provides a way for camera manufacturers to store private data in the DNG file for use by their own raw converters, and to have that data preserved by programs that edit DNG files.


htag: 0xc635
ifd: Image
key: Exif.Image.MakerNoteSafety
type: Short
description:
MakerNoteSafety lets the DNG reader know whether the EXIF MakerNote tag is safe to preserve along with the rest of the EXIF data. File browsers and other image management software processing an image with a preserved MakerNote should be aware that any thumbnail image embedded in the MakerNote may be stale, and may not reflect the current state of the full size image.


htag: 0xc65a
ifd: Image
key: Exif.Image.CalibrationIlluminant1
type: Short
description:
The illuminant used for the first set of color calibration tags (ColorMatrix1, CameraCalibration1, ReductionMatrix1). The legal values for this tag are the same as the legal values for the LightSource EXIF tag.


htag: 0xc65b
ifd: Image
key: Exif.Image.CalibrationIlluminant2
type: Short
description:
The illuminant used for an optional second set of color calibration tags (ColorMatrix2, CameraCalibration2, ReductionMatrix2). The legal values for this tag are the same as the legal values for the CalibrationIlluminant1 tag; however, if both are included, neither is allowed to have a value of 0 (unknown).


htag: 0xc65c
ifd: Image
key: Exif.Image.BestQualityScale
type: Rational
description:
For some cameras, the best possible image quality is not achieved by preserving the total pixel count during conversion. For example, Fujifilm SuperCCD images have maximum detail when their total pixel count is doubled. This tag specifies the amount by which the values of the DefaultScale tag need to be multiplied to achieve the best quality image size.


htag: 0xc65d
ifd: Image
key: Exif.Image.RawDataUniqueID
type: Byte
description:
This tag contains a 16-byte unique identifier for the raw image data in the DNG file. DNG readers can use this tag to recognize a particular raw image, even if the file's name or the metadata contained in the file has been changed. If a DNG writer creates such an identifier, it should do so using an algorithm that will ensure that it is very unlikely two different images will end up having the same identifier.


htag: 0xc68b
ifd: Image
key: Exif.Image.OriginalRawFileName
type: Byte
description:
If the DNG file was converted from a non-DNG raw file, then this tag contains the file name of that original raw file.


htag: 0xc68c
ifd: Image
key: Exif.Image.OriginalRawFileData
type: Undefined
description:
If the DNG file was converted from a non-DNG raw file, then this tag contains the compressed contents of that original raw file. The contents of this tag always use the big-endian byte order. The tag contains a sequence of data blocks. Future versions of the DNG specification may define additional data blocks, so DNG readers should ignore extra bytes when parsing this tag. DNG readers should also detect the case where data blocks are missing from the end of the sequence, and should assume a default value for all the missing blocks. There are no padding or alignment bytes between data blocks.


htag: 0xc68d
ifd: Image
key: Exif.Image.ActiveArea
type: Short
description:
This rectangle defines the active (non-masked) pixels of the sensor. The order of the rectangle coordinates is: top, left, bottom, right.


htag: 0xc68e
ifd: Image
key: Exif.Image.MaskedAreas
type: Short
description:
This tag contains a list of non-overlapping rectangle coordinates of fully masked pixels, which can be optionally used by DNG readers to measure the black encoding level. The order of each rectangle's coordinates is: top, left, bottom, right. If the raw image data has already had its black encoding level subtracted, then this tag should not be used, since the masked pixels are no longer useful.


htag: 0xc68f
ifd: Image
key: Exif.Image.AsShotICCProfile
type: Undefined
description:
This tag contains an ICC profile that, in conjunction with the AsShotPreProfileMatrix tag, provides the camera manufacturer with a way to specify a default color rendering from camera color space coordinates (linear reference values) into the ICC profile connection space. The ICC profile connection space is an output referred colorimetric space, whereas the other color calibration tags in DNG specify a conversion into a scene referred colorimetric space. This means that the rendering in this profile should include any desired tone and gamut mapping needed to convert between scene referred values and output referred values.


htag: 0xc690
ifd: Image
key: Exif.Image.AsShotPreProfileMatrix
type: SRational
description:
This tag is used in conjunction with the AsShotICCProfile tag. It specifies a matrix that should be applied to the camera color space coordinates before processing the values through the ICC profile specified in the AsShotICCProfile tag. The matrix is stored in the row scan order. If ColorPlanes is greater than three, then this matrix can (but is not required to) reduce the dimensionality of the color data down to three components, in which case the AsShotICCProfile should have three rather than ColorPlanes input components.


htag: 0xc691
ifd: Image
key: Exif.Image.CurrentICCProfile
type: Undefined
description:
This tag is used in conjunction with the CurrentPreProfileMatrix tag. The CurrentICCProfile and CurrentPreProfileMatrix tags have the same purpose and usage as the AsShotICCProfile and AsShotPreProfileMatrix tag pair, except they are for use by raw file editors rather than camera manufacturers.


htag: 0xc692
ifd: Image
key: Exif.Image.CurrentPreProfileMatrix
type: SRational
description:
This tag is used in conjunction with the CurrentICCProfile tag. The CurrentICCProfile and CurrentPreProfileMatrix tags have the same purpose and usage as the AsShotICCProfile and AsShotPreProfileMatrix tag pair, except they are for use by raw file editors rather than camera manufacturers.


htag: 0xc6bf
ifd: Image
key: Exif.Image.ColorimetricReference
type: Short
description:
The DNG color model documents a transform between camera colors and CIE XYZ values. This tag describes the colorimetric reference for the CIE XYZ values. 0 = The XYZ values are scene-referred. 1 = The XYZ values are output-referred, using the ICC profile perceptual dynamic range. This tag allows output-referred data to be stored in DNG files and still processed correctly by DNG readers.


htag: 0xc6f3
ifd: Image
key: Exif.Image.CameraCalibrationSignature
type: Byte
description:
A UTF-8 encoded string associated with the CameraCalibration1 and CameraCalibration2 tags. The CameraCalibration1 and CameraCalibration2 tags should only be used in the DNG color transform if the string stored in the CameraCalibrationSignature tag exactly matches the string stored in the ProfileCalibrationSignature tag for the selected camera profile.


htag: 0xc6f4
ifd: Image
key: Exif.Image.ProfileCalibrationSignature
type: Byte
description:
A UTF-8 encoded string associated with the camera profile tags. The CameraCalibration1 and CameraCalibration2 tags should only be used in the DNG color transfer if the string stored in the CameraCalibrationSignature tag exactly matches the string stored in the ProfileCalibrationSignature tag for the selected camera profile.


htag: 0xc6f7
ifd: Image
key: Exif.Image.NoiseReductionApplied
type: Rational
description:
This tag indicates how much noise reduction has been applied to the raw data on a scale of 0.0 to 1.0. A 0.0 value indicates that no noise reduction has been applied. A 1.0 value indicates that the "ideal" amount of noise reduction has been applied, i.e. that the DNG reader should not apply additional noise reduction by default. A value of 0/0 indicates that this parameter is unknown.


htag: 0xc6f8
ifd: Image
key: Exif.Image.ProfileName
type: Byte
description:
A UTF-8 encoded string containing the name of the camera profile. This tag is optional if there is only a single camera profile stored in the file but is required for all camera profiles if there is more than one camera profile stored in the file.


htag: 0xc6f9
ifd: Image
key: Exif.Image.ProfileHueSatMapDims
type: Long
description:
This tag specifies the number of input samples in each dimension of the hue/saturation/value mapping tables. The data for these tables are stored in ProfileHueSatMapData1 and ProfileHueSatMapData2 tags. The most common case has ValueDivisions equal to 1, so only hue and saturation are used as inputs to the mapping table.


htag: 0xc6fa
ifd: Image
key: Exif.Image.ProfileHueSatMapData1
type: Float
description:
This tag contains the data for the first hue/saturation/value mapping table. Each entry of the table contains three 32-bit IEEE floating-point values. The first entry is hue shift in degrees; the second entry is saturation scale factor; and the third entry is a value scale factor. The table entries are stored in the tag in nested loop order, with the value divisions in the outer loop, the hue divisions in the middle loop, and the saturation divisions in the inner loop. All zero input saturation entries are required to have a value scale factor of 1.0.


htag: 0xc6fb
ifd: Image
key: Exif.Image.ProfileHueSatMapData2
type: Float
description:
This tag contains the data for the second hue/saturation/value mapping table. Each entry of the table contains three 32-bit IEEE floating-point values. The first entry is hue shift in degrees; the second entry is a saturation scale factor; and the third entry is a value scale factor. The table entries are stored in the tag in nested loop order, with the value divisions in the outer loop, the hue divisions in the middle loop, and the saturation divisions in the inner loop. All zero input saturation entries are required to have a value scale factor of 1.0.


htag: 0xc6fc
ifd: Image
key: Exif.Image.ProfileToneCurve
type: Float
description:
This tag contains a default tone curve that can be applied while processing the image as a starting point for user adjustments. The curve is specified as a list of 32-bit IEEE floating-point value pairs in linear gamma. Each sample has an input value in the range of 0.0 to 1.0, and an output value in the range of 0.0 to 1.0. The first sample is required to be (0.0, 0.0), and the last sample is required to be (1.0, 1.0). Interpolated the curve using a cubic spline.


htag: 0xc6fe
ifd: Image
key: Exif.Image.ProfileCopyright
type: Byte
description:
A UTF-8 encoded string containing the copyright information for the camera profile. This string always should be preserved along with the other camera profile tags.


htag: 0xc716
ifd: Image
key: Exif.Image.PreviewApplicationName
type: Byte
description:
A UTF-8 encoded string containing the name of the application that created the preview stored in the IFD.


htag: 0xc717
ifd: Image
key: Exif.Image.PreviewApplicationVersion
type: Byte
description:
A UTF-8 encoded string containing the version number of the application that created the preview stored in the IFD.


htag: 0xc718
ifd: Image
key: Exif.Image.PreviewSettingsName
type: Byte
description:
A UTF-8 encoded string containing the name of the conversion settings (for example, snapshot name) used for the preview stored in the IFD.


htag: 0xc719
ifd: Image
key: Exif.Image.PreviewSettingsDigest
type: Byte
description:
A unique ID of the conversion settings (for example, MD5 digest) used to render the preview stored in the IFD.


htag: 0xc71a
ifd: Image
key: Exif.Image.PreviewColorSpace
type: Long
description:
This tag specifies the color space in which the rendered preview in this IFD is stored. The default value for this tag is sRGB for color previews and Gray Gamma 2.2 for monochrome previews.


htag: 0xc71b
ifd: Image
key: Exif.Image.PreviewDateTime
type: Ascii
description:
This tag is an ASCII string containing the name of the date/time at which the preview stored in the IFD was rendered. The date/time is encoded using ISO 8601 format.


htag: 0xc71c
ifd: Image
key: Exif.Image.RawImageDigest
type: Undefined
description:
This tag is an MD5 digest of the raw image data. All pixels in the image are processed in row-scan order. Each pixel is zero padded to 16 or 32 bits deep (16-bit for data less than or equal to 16 bits deep, 32-bit otherwise). The data for each pixel is processed in little-endian byte order.


htag: 0xc71e
ifd: Image
key: Exif.Image.SubTileBlockSize
type: Long
description:
Normally, the pixels within a tile are stored in simple row-scan order. This tag specifies that the pixels within a tile should be grouped first into rectangular blocks of the specified size. These blocks are stored in row-scan order. Within each block, the pixels are stored in row-scan order. The use of a non-default value for this tag requires setting the DNGBackwardVersion tag to at least 1.2.0.0.


htag: 0xc71f
ifd: Image
key: Exif.Image.RowInterleaveFactor
type: Long
description:
This tag specifies that rows of the image are stored in interleaved order. The value of the tag specifies the number of interleaved fields. The use of a non-default value for this tag requires setting the DNGBackwardVersion tag to at least 1.2.0.0.


htag: 0xc725
ifd: Image
key: Exif.Image.ProfileLookTableDims
type: Long
description:
This tag specifies the number of input samples in each dimension of a default "look" table. The data for this table is stored in the ProfileLookTableData tag.


htag: 0xc726
ifd: Image
key: Exif.Image.ProfileLookTableData
type: Float
description:
This tag contains a default "look" table that can be applied while processing the image as a starting point for user adjustment. This table uses the same format as the tables stored in the ProfileHueSatMapData1 and ProfileHueSatMapData2 tags, and is applied in the same color space. However, it should be applied later in the processing pipe, after any exposure compensation and/or fill light stages, but before any tone curve stage. Each entry of the table contains three 32-bit IEEE floating-point values. The first entry is hue shift in degrees, the second entry is a saturation scale factor, and the third entry is a value scale factor. The table entries are stored in the tag in nested loop order, with the value divisions in the outer loop, the hue divisions in the middle loop, and the saturation divisions in the inner loop. All zero input saturation entries are required to have a value scale factor of 1.0.


htag: 0xc740
ifd: Image
key: Exif.Image.OpcodeList1
type: Undefined
description:
Specifies the list of opcodes that should be applied to the raw image, as read directly from the file.


htag: 0xc741
ifd: Image
key: Exif.Image.OpcodeList2
type: Undefined
description:
Specifies the list of opcodes that should be applied to the raw image, just after it has been mapped to linear reference values.


htag: 0xc74e
ifd: Image
key: Exif.Image.OpcodeList3
type: Undefined
description:
Specifies the list of opcodes that should be applied to the raw image, just after it has been demosaiced.


htag: 0xc761
ifd: Image
key: Exif.Image.NoiseProfile
type: Double
description:
NoiseProfile describes the amount of noise in a raw image. Specifically, this tag models the amount of signal-dependent photon (shot) noise and signal-independent sensor readout noise, two common sources of noise in raw images. The model assumes that the noise is white and spatially independent, ignoring fixed pattern effects and other sources of noise (e.g., pixel response non-uniformity, spatially-dependent thermal effects, etc.).


htag: 0xc763
ifd: Image
key: Exif.Image.TimeCodes
type: Byte
description:
The optional TimeCodes tag shall contain an ordered array of time codes. All time codes shall be 8 bytes long and in binary format. The tag may contain from 1 to 10 time codes. When the tag contains more than one time code, the first one shall be the default time code. This specification does not prescribe how to use multiple time codes. Each time code shall be as defined for the 8-byte time code structure in SMPTE 331M-2004, Section 8.3. See also SMPTE 12-1-2008 and SMPTE 309-1999.


htag: 0xc764
ifd: Image
key: Exif.Image.FrameRate
type: SRational
description:
The optional FrameRate tag shall specify the video frame rate in number of image frames per second, expressed as a signed rational number. The numerator shall be non-negative and the denominator shall be positive. This field value is identical to the sample rate field in SMPTE 377-1-2009.


htag: 0xc772
ifd: Image
key: Exif.Image.TStop
type: SRational
description:
The optional TStop tag shall specify the T-stop of the actual lens, expressed as an unsigned rational number. T-stop is also known as T-number or the photometric aperture of the lens. (F-number is the geometric aperture of the lens.) When the exact value is known, the T-stop shall be specified using a single number. Alternately, two numbers shall be used to indicate a T-stop range, in which case the first number shall be the minimum T-stop and the second number shall be the maximum T-stop.


htag: 0xc789
ifd: Image
key: Exif.Image.ReelName
type: Ascii
description:
The optional ReelName tag shall specify a name for a sequence of images, where each image in the sequence has a unique image identifier (including but not limited to file name, frame number, date time, time code).


htag: 0xc7a1
ifd: Image
key: Exif.Image.CameraLabel
type: Ascii
description:
The optional CameraLabel tag shall specify a text label for how the camera is used or assigned in this clip. This tag is similar to CameraLabel in XMP.


htag: 0x8824
ifd: Photo
key: Exif.Photo.SpectralSensitivity
type: Ascii
description:
Indicates the spectral sensitivity of each channel of the camera used. The tag value is an ASCII string compatible with the standard developed by the ASTM Technical Committee.


htag: 0x8828
ifd: Photo
key: Exif.Photo.OECF
type: Undefined
description:
Indicates the Opto-Electoric Conversion Function (OECF) specified in ISO 14524. <OECF> is the relationship between the camera optical input and the image values.


htag: 0x8830
ifd: Photo
key: Exif.Photo.SensitivityType
type: Short
description:
The SensitivityType tag indicates which one of the parameters of ISO12232 is the PhotographicSensitivity tag. Although it is an optional tag, it should be recorded when a PhotographicSensitivity tag is recorded. Value = 4, 5, 6, or 7 may be used in case that the values of plural parameters are the same.


htag: 0x8831
ifd: Photo
key: Exif.Photo.StandardOutputSensitivity
type: Long
description:
This tag indicates the standard output sensitivity value of a camera or input device defined in ISO 12232. When recording this tag, the PhotographicSensitivity and SensitivityType tags shall also be recorded.


htag: 0x8832
ifd: Photo
key: Exif.Photo.RecommendedExposureIndex
type: Long
description:
This tag indicates the recommended exposure index value of a camera or input device defined in ISO 12232. When recording this tag, the PhotographicSensitivity and SensitivityType tags shall also be recorded.


htag: 0x8833
ifd: Photo
key: Exif.Photo.ISOSpeed
type: Long
description:
This tag indicates the ISO speed value of a camera or input device that is defined in ISO 12232. When recording this tag, the PhotographicSensitivity and SensitivityType tags shall also be recorded.


htag: 0x8834
ifd: Photo
key: Exif.Photo.ISOSpeedLatitudeyyy
type: Long
description:
This tag indicates the ISO speed latitude yyy value of a camera or input device that is defined in ISO 12232. However, this tag shall not be recorded without ISOSpeed and ISOSpeedLatitudezzz.


htag: 0x8835
ifd: Photo
key: Exif.Photo.ISOSpeedLatitudezzz
type: Long
description:
This tag indicates the ISO speed latitude zzz value of a camera or input device that is defined in ISO 12232. However, this tag shall not be recorded without ISOSpeed and ISOSpeedLatitudeyyy.


htag: 0x9000
ifd: Photo
key: Exif.Photo.ExifVersion
type: Undefined
description:
The version of this standard supported. Nonexistence of this field is taken to mean nonconformance to the standard.


htag: 0x9003
ifd: Photo
key: Exif.Photo.DateTimeOriginal
type: Ascii
description:
The date and time when the original image data was generated. For a digital still camera the date and time the picture was taken are recorded.


htag: 0x9101
ifd: Photo
key: Exif.Photo.ComponentsConfiguration
type: Undefined
description:
Information specific to compressed data. The channels of each component are arranged in order from the 1st component to the 4th. For uncompressed data the data arrangement is given in the <PhotometricInterpretation> tag. However, since <PhotometricInterpretation> can only express the order of Y, Cb and Cr, this tag is provided for cases when compressed data uses components other than Y, Cb, and Cr and to enable support of other sequences.


htag: 0x9102
ifd: Photo
key: Exif.Photo.CompressedBitsPerPixel
type: Rational
description:
Information specific to compressed data. The compression mode used for a compressed image is indicated in unit bits per pixel.


htag: 0x9203
ifd: Photo
key: Exif.Photo.BrightnessValue
type: SRational
description:
The value of brightness. The unit is the APEX value. Ordinarily it is given in the range of -99.99 to 99.99.


htag: 0x9204
ifd: Photo
key: Exif.Photo.ExposureBiasValue
type: SRational
description:
The exposure bias. The units is the APEX value. Ordinarily it is given in the range of -99.99 to 99.99.


htag: 0x9205
ifd: Photo
key: Exif.Photo.MaxApertureValue
type: Rational
description:
The smallest F number of the lens. The unit is the APEX value. Ordinarily it is given in the range of 00.00 to 99.99, but it is not limited to this range.


htag: 0x920a
ifd: Photo
key: Exif.Photo.FocalLength
type: Rational
description:
The actual focal length of the lens, in mm. Conversion is not made to the focal length of a 35 mm film camera.


htag: 0x927c
ifd: Photo
key: Exif.Photo.MakerNote
type: Undefined
description:
A tag for manufacturers of Exif writers to record any desired information. The contents are up to the manufacturer.


htag: 0x9286
ifd: Photo
key: Exif.Photo.UserComment
type: Comment
description:
A tag for Exif users to write keywords or comments on the image besides those in <ImageDescription>, and without the character code limitations of the <ImageDescription> tag.


htag: 0xa001
ifd: Photo
key: Exif.Photo.ColorSpace
type: Short
description:
The color space information tag is always recorded as the color space specifier. Normally sRGB is used to define the color space based on the PC monitor conditions and environment. If a color space other than sRGB is used, Uncalibrated is set. Image data recorded as Uncalibrated can be treated as sRGB when it is converted to FlashPix.


htag: 0xa002
ifd: Photo
key: Exif.Photo.PixelXDimension
type: Long
description:
Information specific to compressed data. When a compressed file is recorded, the valid width of the meaningful image must be recorded in this tag, whether or not there is padding data or a restart marker. This tag should not exist in an uncompressed file.


htag: 0xa003
ifd: Photo
key: Exif.Photo.PixelYDimension
type: Long
description:
Information specific to compressed data. When a compressed file is recorded, the valid height of the meaningful image must be recorded in this tag, whether or not there is padding data or a restart marker. This tag should not exist in an uncompressed file. Since data padding is unnecessary in the vertical direction, the number of lines recorded in this valid image height tag will in fact be the same as that recorded in the SOF.


htag: 0xa004
ifd: Photo
key: Exif.Photo.RelatedSoundFile
type: Ascii
description:
This tag is used to record the name of an audio file related to the image data. The only relational information recorded here is the Exif audio file name and extension (an ASCII string consisting of 8 characters + '.' + 3 characters). The path is not recorded.


htag: 0xa005
ifd: Photo
key: Exif.Photo.InteroperabilityTag
type: Long
description:
Interoperability IFD is composed of tags which stores the information to ensure the Interoperability and pointed by the following tag located in Exif IFD. The Interoperability structure of Interoperability IFD is the same as TIFF defined IFD structure but does not contain the image data characteristically compared with normal TIFF IFD.


htag: 0xa20b
ifd: Photo
key: Exif.Photo.FlashEnergy
type: Rational
description:
Indicates the strobe energy at the time the image is captured, as measured in Beam Candle Power Seconds (BCPS).


htag: 0xa20c
ifd: Photo
key: Exif.Photo.SpatialFrequencyResponse
type: Undefined
description:
This tag records the camera or input device spatial frequency table and SFR values in the direction of image width, image height, and diagonal direction, as specified in ISO 12233.


htag: 0xa20e
ifd: Photo
key: Exif.Photo.FocalPlaneXResolution
type: Rational
description:
Indicates the number of pixels in the image width (X) direction per <FocalPlaneResolutionUnit> on the camera focal plane.


htag: 0xa20f
ifd: Photo
key: Exif.Photo.FocalPlaneYResolution
type: Rational
description:
Indicates the number of pixels in the image height (V) direction per <FocalPlaneResolutionUnit> on the camera focal plane.


htag: 0xa210
ifd: Photo
key: Exif.Photo.FocalPlaneResolutionUnit
type: Short
description:
Indicates the unit for measuring <FocalPlaneXResolution> and <FocalPlaneYResolution>. This value is the same as the <ResolutionUnit>.


htag: 0xa214
ifd: Photo
key: Exif.Photo.SubjectLocation
type: Short
description:
Indicates the location of the main subject in the scene. The value of this tag represents the pixel at the center of the main subject relative to the left edge, prior to rotation processing as per the <Rotation> tag. The first value indicates the X column number and second indicates the Y row number.


htag: 0xa215
ifd: Photo
key: Exif.Photo.ExposureIndex
type: Rational
description:
Indicates the exposure index selected on the camera or input device at the time the image is captured.


htag: 0xa300
ifd: Photo
key: Exif.Photo.FileSource
type: Undefined
description:
Indicates the image source. If a DSC recorded the image, this tag value of this tag always be set to 3, indicating that the image was recorded on a DSC.


htag: 0xa301
ifd: Photo
key: Exif.Photo.SceneType
type: Undefined
description:
Indicates the type of scene. If a DSC recorded the image, this tag value must always be set to 1, indicating that the image was directly photographed.


htag: 0xa302
ifd: Photo
key: Exif.Photo.CFAPattern
type: Undefined
description:
Indicates the color filter array (CFA) geometric pattern of the image sensor when a one-chip color area sensor is used. It does not apply to all sensing methods.


htag: 0xa401
ifd: Photo
key: Exif.Photo.CustomRendered
type: Short
description:
This tag indicates the use of special processing on image data, such as rendering geared to output. When special processing is performed, the reader is expected to disable or minimize any further processing.


htag: 0xa402
ifd: Photo
key: Exif.Photo.ExposureMode
type: Short
description:
This tag indicates the exposure mode set when the image was shot. In auto-bracketing mode, the camera shoots a series of frames of the same scene at different exposure settings.


htag: 0xa404
ifd: Photo
key: Exif.Photo.DigitalZoomRatio
type: Rational
description:
This tag indicates the digital zoom ratio when the image was shot. If the numerator of the recorded value is 0, this indicates that digital zoom was not used.


htag: 0xa405
ifd: Photo
key: Exif.Photo.FocalLengthIn35mmFilm
type: Short
description:
This tag indicates the equivalent focal length assuming a 35mm film camera, in mm. A value of 0 means the focal length is unknown. Note that this tag differs from the <FocalLength> tag.


htag: 0xa406
ifd: Photo
key: Exif.Photo.SceneCaptureType
type: Short
description:
This tag indicates the type of scene that was shot. It can also be used to record the mode in which the image was shot. Note that this differs from the <SceneType> tag.


htag: 0xa408
ifd: Photo
key: Exif.Photo.Contrast
type: Short
description:
This tag indicates the direction of contrast processing applied by the camera when the image was shot.


htag: 0xa409
ifd: Photo
key: Exif.Photo.Saturation
type: Short
description:
This tag indicates the direction of saturation processing applied by the camera when the image was shot.


htag: 0xa40a
ifd: Photo
key: Exif.Photo.Sharpness
type: Short
description:
This tag indicates the direction of sharpness processing applied by the camera when the image was shot.


htag: 0xa40b
ifd: Photo
key: Exif.Photo.DeviceSettingDescription
type: Undefined
description:
This tag indicates information on the picture-taking conditions of a particular camera model. The tag is used only to indicate the picture-taking conditions in the reader.


htag: 0xa420
ifd: Photo
key: Exif.Photo.ImageUniqueID
type: Ascii
description:
This tag indicates an identifier assigned uniquely to each image. It is recorded as an ASCII string equivalent to hexadecimal notation and 128-bit fixed length.


htag: 0xa431
ifd: Photo
key: Exif.Photo.BodySerialNumber
type: Ascii
description:
This tag records the serial number of the body of the camera that was used in photography as an ASCII string.


htag: 0xa432
ifd: Photo
key: Exif.Photo.LensSpecification
type: Rational
description:
This tag notes minimum focal length, maximum focal length, minimum F number in the minimum focal length, and minimum F number in the maximum focal length, which are specification information for the lens that was used in photography. When the minimum F number is unknown, the notation is 0/0


htag: 0xa435
ifd: Photo
key: Exif.Photo.LensSerialNumber
type: Ascii
description:
This tag records the serial number of the interchangeable lens that was used in photography as an ASCII string.


htag: 0x0001
ifd: Iop
key: Exif.Iop.InteroperabilityIndex
type: Ascii
description:
Indicates the identification of the Interoperability rule. Use "R98" for stating ExifR98 Rules. Four bytes used including the termination code (NULL). see the separate volume of Recommended Exif Interoperability Rules (ExifR98) for other tags used for ExifR98.


htag: 0x0000
ifd: GPSInfo
key: Exif.GPSInfo.GPSVersionID
type: Byte
description:
Indicates the version of <GPSInfoIFD>. The version is given as 2.0.0.0. This tag is mandatory when <GPSInfo> tag is present. (Note: The <GPSVersionID> tag is given in bytes, unlike the <ExifVersion> tag. When the version is 2.0.0.0, the tag value is 02000000.H).


htag: 0x0001
ifd: GPSInfo
key: Exif.GPSInfo.GPSLatitudeRef
type: Ascii
description:
Indicates whether the latitude is north or south latitude. The ASCII value 'N' indicates north latitude, and 'S' is south latitude.


htag: 0x0002
ifd: GPSInfo
key: Exif.GPSInfo.GPSLatitude
type: Rational
description:
Indicates the latitude. The latitude is expressed as three RATIONAL values giving the degrees, minutes, and seconds, respectively. When degrees, minutes and seconds are expressed, the format is dd/1,mm/1,ss/1. When degrees and minutes are used and, for example, fractions of minutes are given up to two decimal places, the format is dd/1,mmmm/100,0/1.


htag: 0x0003
ifd: GPSInfo
key: Exif.GPSInfo.GPSLongitudeRef
type: Ascii
description:
Indicates whether the longitude is east or west longitude. ASCII 'E' indicates east longitude, and 'W' is west longitude.


htag: 0x0004
ifd: GPSInfo
key: Exif.GPSInfo.GPSLongitude
type: Rational
description:
Indicates the longitude. The longitude is expressed as three RATIONAL values giving the degrees, minutes, and seconds, respectively. When degrees, minutes and seconds are expressed, the format is ddd/1,mm/1,ss/1. When degrees and minutes are used and, for example, fractions of minutes are given up to two decimal places, the format is ddd/1,mmmm/100,0/1.


htag: 0x0005
ifd: GPSInfo
key: Exif.GPSInfo.GPSAltitudeRef
type: Byte
description:
Indicates the altitude used as the reference altitude. If the reference is sea level and the altitude is above sea level, 0 is given. If the altitude is below sea level, a value of 1 is given and the altitude is indicated as an absolute value in the GSPAltitude tag. The reference unit is meters. Note that this tag is BYTE type, unlike other reference tags.


htag: 0x0006
ifd: GPSInfo
key: Exif.GPSInfo.GPSAltitude
type: Rational
description:
Indicates the altitude based on the reference in GPSAltitudeRef. Altitude is expressed as one RATIONAL value. The reference unit is meters.


htag: 0x0007
ifd: GPSInfo
key: Exif.GPSInfo.GPSTimeStamp
type: Rational
description:
Indicates the time as UTC (Coordinated Universal Time). <TimeStamp> is expressed as three RATIONAL values giving the hour, minute, and second (atomic clock).


htag: 0x0008
ifd: GPSInfo
key: Exif.GPSInfo.GPSSatellites
type: Ascii
description:
Indicates the GPS satellites used for measurements. This tag can be used to describe the number of satellites, their ID number, angle of elevation, azimuth, SNR and other information in ASCII notation. The format is not specified. If the GPS receiver is incapable of taking measurements, value of the tag is set to NULL.


htag: 0x0009
ifd: GPSInfo
key: Exif.GPSInfo.GPSStatus
type: Ascii
description:
Indicates the status of the GPS receiver when the image is recorded. "A" means measurement is in progress, and "V" means the measurement is Interoperability.


htag: 0x000a
ifd: GPSInfo
key: Exif.GPSInfo.GPSMeasureMode
type: Ascii
description:
Indicates the GPS measurement mode. "2" means two-dimensional measurement and "3" means three-dimensional measurement is in progress.


htag: 0x000b
ifd: GPSInfo
key: Exif.GPSInfo.GPSDOP
type: Rational
description:
Indicates the GPS DOP (data degree of precision). An HDOP value is written during two-dimensional measurement, and PDOP during three-dimensional measurement.


htag: 0x000c
ifd: GPSInfo
key: Exif.GPSInfo.GPSSpeedRef
type: Ascii
description:
Indicates the unit used to express the GPS receiver speed of movement. "K" "M" and "N" represents kilometers per hour, miles per hour, and knots.


htag: 0x000e
ifd: GPSInfo
key: Exif.GPSInfo.GPSTrackRef
type: Ascii
description:
Indicates the reference for giving the direction of GPS receiver movement. "T" denotes true direction and "M" is magnetic direction.


htag: 0x0010
ifd: GPSInfo
key: Exif.GPSInfo.GPSImgDirectionRef
type: Ascii
description:
Indicates the reference for giving the direction of the image when it is captured. "T" denotes true direction and "M" is magnetic direction.


htag: 0x0011
ifd: GPSInfo
key: Exif.GPSInfo.GPSImgDirection
type: Rational
description:
Indicates the direction of the image when it was captured. The range of values is from 0.00 to 359.99.


htag: 0x0012
ifd: GPSInfo
key: Exif.GPSInfo.GPSMapDatum
type: Ascii
description:
Indicates the geodetic survey data used by the GPS receiver. If the survey data is restricted to Japan, the value of this tag is "TOKYO" or "WGS-84".


htag: 0x0013
ifd: GPSInfo
key: Exif.GPSInfo.GPSDestLatitudeRef
type: Ascii
description:
Indicates whether the latitude of the destination point is north or south latitude. The ASCII value "N" indicates north latitude, and "S" is south latitude.


htag: 0x0014
ifd: GPSInfo
key: Exif.GPSInfo.GPSDestLatitude
type: Rational
description:
Indicates the latitude of the destination point. The latitude is expressed as three RATIONAL values giving the degrees, minutes, and seconds, respectively. If latitude is expressed as degrees, minutes and seconds, a typical format would be dd/1,mm/1,ss/1. When degrees and minutes are used and, for example, fractions of minutes are given up to two decimal places, the format would be dd/1,mmmm/100,0/1.


htag: 0x0015
ifd: GPSInfo
key: Exif.GPSInfo.GPSDestLongitudeRef
type: Ascii
description:
Indicates whether the longitude of the destination point is east or west longitude. ASCII "E" indicates east longitude, and "W" is west longitude.


htag: 0x0016
ifd: GPSInfo
key: Exif.GPSInfo.GPSDestLongitude
type: Rational
description:
Indicates the longitude of the destination point. The longitude is expressed as three RATIONAL values giving the degrees, minutes, and seconds, respectively. If longitude is expressed as degrees, minutes and seconds, a typical format would be ddd/1,mm/1,ss/1. When degrees and minutes are used and, for example, fractions of minutes are given up to two decimal places, the format would be ddd/1,mmmm/100,0/1.


htag: 0x0017
ifd: GPSInfo
key: Exif.GPSInfo.GPSDestBearingRef
type: Ascii
description:
Indicates the reference used for giving the bearing to the destination point. "T" denotes true direction and "M" is magnetic direction.


htag: 0x0019
ifd: GPSInfo
key: Exif.GPSInfo.GPSDestDistanceRef
type: Ascii
description:
Indicates the unit used to express the distance to the destination point. "K", "M" and "N" represent kilometers, miles and knots.


htag: 0x001b
ifd: GPSInfo
key: Exif.GPSInfo.GPSProcessingMethod
type: Undefined
description:
A character string recording the name of the method used for location finding. The first byte indicates the character code used, and this is followed by the name of the method.


htag: 0x001c
ifd: GPSInfo
key: Exif.GPSInfo.GPSAreaInformation
type: Undefined
description:
A character string recording the name of the GPS area. The first byte indicates the character code used, and this is followed by the name of the GPS area.


htag: 0x001d
ifd: GPSInfo
key: Exif.GPSInfo.GPSDateStamp
type: Ascii
description:
A character string recording date and time information relative to UTC (Coordinated Universal Time). The format is "YYYY:MM:DD.".


htag: 0x0010
ifd: Fujifilm
key: Exif.Fujifilm.SerialNumber
type: Ascii
description:
This number is unique, and contains the date of manufacture, but is not the same as the number printed on the camera body.


