Exiv2 Tag Tables

Exif Tags supported by Exiv2

These are the Exif tags as defined in the Exif 2.2 standard.

IFD1 tags are not listed seperately. All IFD0 tags may also be present in IFD1, according to the standard. The second part of the Exiv2 key of an IFD1 tag is Thumbnail (instead of Image), the other two parts of the key are the same as for IFD0 tags.

Click on a column header to sort the table.

Tag (hex) Tag (dec) IFD Key Type Tag description
0x000b 11 IFD0 Exif.Image.ProcessingSoftware Ascii The name and version of the software used to post-process the picture.
0x00fe 254 IFD0 Exif.Image.NewSubfileType Long A general indication of the kind of data contained in this subfile.
0x0100 256 IFD0 Exif.Image.ImageWidth Long 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.
0x0101 257 IFD0 Exif.Image.ImageLength Long The number of rows of image data. In JPEG compressed data a JPEG marker is used instead of this tag.
0x0102 258 IFD0 Exif.Image.BitsPerSample Short 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.
0x0103 259 IFD0 Exif.Image.Compression Short 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.
0x0106 262 IFD0 Exif.Image.PhotometricInterpretation Short The pixel composition. In JPEG compressed data a JPEG marker is used instead of this tag.
0x010a 266 IFD0 Exif.Image.FillOrder Short The logical order of bits within a byte
0x010d 269 IFD0 Exif.Image.DocumentName Ascii The name of the document from which this image was scanned
0x010e 270 IFD0 Exif.Image.ImageDescription Ascii 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.
0x010f 271 IFD0 Exif.Image.Make Ascii 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.
0x0110 272 IFD0 Exif.Image.Model Ascii 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.
0x0111 273 IFD0 Exif.Image.StripOffsets Long 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>.
0x0112 274 IFD0 Exif.Image.Orientation Short The image orientation viewed in terms of rows and columns.
0x0115 277 IFD0 Exif.Image.SamplesPerPixel Short 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.
0x0116 278 IFD0 Exif.Image.RowsPerStrip Long 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>.
0x0117 279 IFD0 Exif.Image.StripByteCounts Long The total number of bytes in each strip. With JPEG compressed data this designation is not needed and is omitted.
0x011a 282 IFD0 Exif.Image.XResolution Rational The number of pixels per <ResolutionUnit> in the <ImageWidth> direction. When the image resolution is unknown, 72 [dpi] is designated.
0x011b 283 IFD0 Exif.Image.YResolution Rational The number of pixels per <ResolutionUnit> in the <ImageLength> direction. The same value as <XResolution> is designated.
0x011c 284 IFD0 Exif.Image.PlanarConfiguration Short 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.
0x0128 296 IFD0 Exif.Image.ResolutionUnit Short 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.
0x012d 301 IFD0 Exif.Image.TransferFunction Short 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>).
0x0131 305 IFD0 Exif.Image.Software Ascii 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.
0x0132 306 IFD0 Exif.Image.DateTime Ascii The date and time of image creation. In Exif standard, it is the date and time the file was changed.
0x013b 315 IFD0 Exif.Image.Artist Ascii 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"
0x013c 316 IFD0 Exif.Image.HostComputer Ascii This tag records information about the host computer used to generate the image.
0x013e 318 IFD0 Exif.Image.WhitePoint Rational 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>).
0x013f 319 IFD0 Exif.Image.PrimaryChromaticities Rational 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>).
0x0142 322 IFD0 Exif.Image.TileWidth Short The tile width in pixels. This is the number of columns in each tile.
0x0143 323 IFD0 Exif.Image.TileLength Short The tile length (height) in pixels. This is the number of rows in each tile.
0x0144 324 IFD0 Exif.Image.TileOffsets Short 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.
0x0145 325 IFD0 Exif.Image.TileByteCounts Short For each tile, the number of (compressed) bytes in that tile. See TileOffsets for a description of how the byte counts are ordered.
0x014a 330 IFD0 Exif.Image.SubIFDs Long Defined by Adobe Corporation to enable TIFF Trees within a TIFF file.
0x0156 342 IFD0 Exif.Image.TransferRange Short Expands the range of the TransferFunction
0x015b 347 IFD0 Exif.Image.JPEGTables Undefined This optional tag may be used to encode the JPEG quantization andHuffman tables for subsequent use by the JPEG decompression process.
0x0200 512 IFD0 Exif.Image.JPEGProc Long This field indicates the process used to produce the compressed data
0x0201 513 IFD0 Exif.Image.JPEGInterchangeFormat Long The offset to the start byte (SOI) of JPEG compressed thumbnail data. This is not used for primary image JPEG data.
0x0202 514 IFD0 Exif.Image.JPEGInterchangeFormatLength Long 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.
0x0211 529 IFD0 Exif.Image.YCbCrCoefficients Rational 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.
0x0212 530 IFD0 Exif.Image.YCbCrSubSampling Short 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.
0x0213 531 IFD0 Exif.Image.YCbCrPositioning Short 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.
0x0214 532 IFD0 Exif.Image.ReferenceBlackWhite Rational 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.
0x02bc 700 IFD0 Exif.Image.XMLPacket Byte XMP Metadata (Adobe technote 9-14-02)
0x4746 18246 IFD0 Exif.Image.Rating Short Rating tag used by Windows
0x4749 18249 IFD0 Exif.Image.RatingPercent Short Rating tag used by Windows, value in percent
0x828d 33421 IFD0 Exif.Image.CFARepeatPatternDim Short Contains two values representing the minimum rows and columns to define the repeating patterns of the color filter array
0x828e 33422 IFD0 Exif.Image.CFAPattern Byte 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
0x828f 33423 IFD0 Exif.Image.BatteryLevel Rational Contains a value of the battery level as a fraction or string
0x8298 33432 IFD0 Exif.Image.Copyright Ascii 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.
0x829a 33434 IFD0 Exif.Image.ExposureTime Rational Exposure time, given in seconds.
0x829d 33437 IFD0 Exif.Image.FNumber Rational The F number.
0x83bb 33723 IFD0 Exif.Image.IPTCNAA Long Contains an IPTC/NAA record
0x8649 34377 IFD0 Exif.Image.ImageResources Byte Contains information embedded by the Adobe Photoshop application
0x8769 34665 IFD0 Exif.Image.ExifTag Long 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.
0x8773 34675 IFD0 Exif.Image.InterColorProfile Undefined Contains an InterColor Consortium (ICC) format color space characterization/profile
0x8822 34850 IFD0 Exif.Image.ExposureProgram Short The class of the program used by the camera to set exposure when the picture is taken.
0x8824 34852 IFD0 Exif.Image.SpectralSensitivity Ascii Indicates the spectral sensitivity of each channel of the camera used.
0x8825 34853 IFD0 Exif.Image.GPSTag Long A pointer to the GPS Info IFD. The Interoperability structure of the GPS Info IFD, like that of Exif IFD, has no image data.
0x8827 34855 IFD0 Exif.Image.ISOSpeedRatings Short Indicates the ISO Speed and ISO Latitude of the camera or input device as specified in ISO 12232.
0x8828 34856 IFD0 Exif.Image.OECF Undefined Indicates the Opto-Electric Conversion Function (OECF) specified in ISO 14524.
0x8829 34857 IFD0 Exif.Image.Interlace Short Indicates the field number of multifield images.
0x882a 34858 IFD0 Exif.Image.TimeZoneOffset SShort This optional tag encodes the time zone of the camera clock (relativeto Greenwich Mean Time) used to create the DataTimeOriginal tag-valuewhen the picture was taken. It may also contain the time zone offsetof the clock used to create the DateTime tag-value when the image wasmodified.
0x882b 34859 IFD0 Exif.Image.SelfTimerMode Short Number of seconds image capture was delayed from button press.
0x9003 36867 IFD0 Exif.Image.DateTimeOriginal Ascii The date and time when the original image data was generated.
0x9102 37122 IFD0 Exif.Image.CompressedBitsPerPixel Rational Specific to compressed data; states the compressed bits per pixel.
0x9201 37377 IFD0 Exif.Image.ShutterSpeedValue Rational Shutter speed.
0x9202 37378 IFD0 Exif.Image.ApertureValue Rational The lens aperture.
0x9203 37379 IFD0 Exif.Image.BrightnessValue SRational The value of brightness.
0x9204 37380 IFD0 Exif.Image.ExposureBiasValue SRational The exposure bias.
0x9205 37381 IFD0 Exif.Image.MaxApertureValue Rational The smallest F number of the lens.
0x9206 37382 IFD0 Exif.Image.SubjectDistance SRational The distance to the subject, given in meters.
0x9207 37383 IFD0 Exif.Image.MeteringMode Short The metering mode.
0x9208 37384 IFD0 Exif.Image.LightSource Short The kind of light source.
0x9209 37385 IFD0 Exif.Image.Flash Short Indicates the status of flash when the image was shot.
0x920a 37386 IFD0 Exif.Image.FocalLength Rational The actual focal length of the lens, in mm.
0x920b 37387 IFD0 Exif.Image.FlashEnergy Rational Amount of flash energy (BCPS).
0x920c 37388 IFD0 Exif.Image.SpatialFrequencyResponse Undefined SFR of the camera.
0x920d 37389 IFD0 Exif.Image.Noise Undefined Noise measurement values.
0x920e 37390 IFD0 Exif.Image.FocalPlaneXResolution Rational Number of pixels per FocalPlaneResolutionUnit (37392) in ImageWidth direction for main image.
0x920f 37391 IFD0 Exif.Image.FocalPlaneYResolution Rational Number of pixels per FocalPlaneResolutionUnit (37392) in ImageLength direction for main image.
0x9210 37392 IFD0 Exif.Image.FocalPlaneResolutionUnit Short Unit of measurement for FocalPlaneXResolution(37390) and FocalPlaneYResolution(37391).
0x9211 37393 IFD0 Exif.Image.ImageNumber Long Number assigned to an image, e.g., in a chained image burst.
0x9212 37394 IFD0 Exif.Image.SecurityClassification Ascii Security classification assigned to the image.
0x9213 37395 IFD0 Exif.Image.ImageHistory Ascii Record of what has been done to the image.
0x9214 37396 IFD0 Exif.Image.SubjectLocation Short Indicates the location and area of the main subject in the overall scene.
0x9215 37397 IFD0 Exif.Image.ExposureIndex Rational Encodes the camera exposure index setting when image was captured.
0x9216 37398 IFD0 Exif.Image.TIFFEPStandardID Byte Contains four ASCII characters representing the TIFF/EP standard version of a TIFF/EP file, eg '1', '0', '0', '0'
0x9217 37399 IFD0 Exif.Image.SensingMethod Short Type of image sensor.
0x9c9b 40091 IFD0 Exif.Image.XPTitle Byte Title tag used by Windows, encoded in UCS2
0x9c9c 40092 IFD0 Exif.Image.XPComment Byte Comment tag used by Windows, encoded in UCS2
0x9c9d 40093 IFD0 Exif.Image.XPAuthor Byte Author tag used by Windows, encoded in UCS2
0x9c9e 40094 IFD0 Exif.Image.XPKeywords Byte Keywords tag used by Windows, encoded in UCS2
0x9c9f 40095 IFD0 Exif.Image.XPSubject Byte Subject tag used by Windows, encoded in UCS2
0xc4a5 50341 IFD0 Exif.Image.PrintImageMatching Undefined Print Image Matching, descriptiont needed.
0xc612 50706 IFD0 Exif.Image.DNGVersion Byte 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.
0xc613 50707 IFD0 Exif.Image.DNGBackwardVersion Byte 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.
0xc614 50708 IFD0 Exif.Image.UniqueCameraModel Ascii 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.
0xc615 50709 IFD0 Exif.Image.LocalizedCameraModel Byte Similar to the UniqueCameraModel field, except the name can be localized for different markets to match the localization of the camera name.
0xc616 50710 IFD0 Exif.Image.CFAPlaneColor Byte 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.
0xc617 50711 IFD0 Exif.Image.CFALayout Short Describes the spatial layout of the CFA.
0xc618 50712 IFD0 Exif.Image.LinearizationTable Short 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.
0xc619 50713 IFD0 Exif.Image.BlackLevelRepeatDim Short Specifies repeat pattern size for the BlackLevel tag.
0xc61a 50714 IFD0 Exif.Image.BlackLevel Rational 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.
0xc61b 50715 IFD0 Exif.Image.BlackLevelDeltaH SRational 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.
0xc61c 50716 IFD0 Exif.Image.BlackLevelDeltaV SRational 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.
0xc61d 50717 IFD0 Exif.Image.WhiteLevel Short 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.
0xc61e 50718 IFD0 Exif.Image.DefaultScale Rational 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.
0xc61f 50719 IFD0 Exif.Image.DefaultCropOrigin Short 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.
0xc620 50720 IFD0 Exif.Image.DefaultCropSize Short 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).
0xc621 50721 IFD0 Exif.Image.ColorMatrix1 SRational 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.
0xc622 50722 IFD0 Exif.Image.ColorMatrix2 SRational 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.
0xc623 50723 IFD0 Exif.Image.CameraCalibration1 SRational CameraClalibration1 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.
0xc624 50724 IFD0 Exif.Image.CameraCalibration2 SRational 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.
0xc625 50725 IFD0 Exif.Image.ReductionMatrix1 SRational 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.
0xc626 50726 IFD0 Exif.Image.ReductionMatrix2 SRational 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.
0xc627 50727 IFD0 Exif.Image.AnalogBalance Rational 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.
0xc628 50728 IFD0 Exif.Image.AsShotNeutral Short 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.
0xc629 50729 IFD0 Exif.Image.AsShotWhiteXY Rational 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.
0xc62a 50730 IFD0 Exif.Image.BaselineExposure SRational 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.
0xc62b 50731 IFD0 Exif.Image.BaselineNoise Rational 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.
0xc62c 50732 IFD0 Exif.Image.BaselineSharpness Rational 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.
0xc62d 50733 IFD0 Exif.Image.BayerGreenSplit Long 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).
0xc62e 50734 IFD0 Exif.Image.LinearResponseLimit Rational 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.
0xc62f 50735 IFD0 Exif.Image.CameraSerialNumber Ascii CameraSerialNumber contains the serial number of the camera or camera body that captured the image.
0xc630 50736 IFD0 Exif.Image.LensInfo Rational Contains information about the lens that captured the image. If the minimum f-stops are unknown, they should be encoded as 0/0.
0xc631 50737 IFD0 Exif.Image.ChromaBlurRadius Rational 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.
0xc632 50738 IFD0 Exif.Image.AntiAliasStrength Rational 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).
0xc633 50739 IFD0 Exif.Image.ShadowScale SRational This tag is used by Adobe Camera Raw to control the sensitivity of its 'Shadows' slider.
0xc634 50740 IFD0 Exif.Image.DNGPrivateData Byte 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.
0xc635 50741 IFD0 Exif.Image.MakerNoteSafety Short 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.
0xc65a 50778 IFD0 Exif.Image.CalibrationIlluminant1 Short 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.
0xc65b 50779 IFD0 Exif.Image.CalibrationIlluminant2 Short 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).
0xc65c 50780 IFD0 Exif.Image.BestQualityScale Rational 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.
0xc65d 50781 IFD0 Exif.Image.RawDataUniqueID Byte 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.
0xc68b 50827 IFD0 Exif.Image.OriginalRawFileName Byte If the DNG file was converted from a non-DNG raw file, then this tag contains the file name of that original raw file.
0xc68c 50828 IFD0 Exif.Image.OriginalRawFileData Undefined 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.
0xc68d 50829 IFD0 Exif.Image.ActiveArea Short This rectangle defines the active (non-masked) pixels of the sensor. The order of the rectangle coordinates is: top, left, bottom, right.
0xc68e 50830 IFD0 Exif.Image.MaskedAreas Short 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.
0xc68f 50831 IFD0 Exif.Image.AsShotICCProfile Undefined 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.
0xc690 50832 IFD0 Exif.Image.AsShotPreProfileMatrix SRational 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.
0xc691 50833 IFD0 Exif.Image.CurrentICCProfile Undefined 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.
0xc692 50834 IFD0 Exif.Image.CurrentPreProfileMatrix SRational 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.
0x829a 33434 Exif Exif.Photo.ExposureTime Rational Exposure time, given in seconds (sec).
0x829d 33437 Exif Exif.Photo.FNumber Rational The F number.
0x8822 34850 Exif Exif.Photo.ExposureProgram Short The class of the program used by the camera to set exposure when the picture is taken.
0x8824 34852 Exif Exif.Photo.SpectralSensitivity Ascii 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.
0x8827 34855 Exif Exif.Photo.ISOSpeedRatings Short Indicates the ISO Speed and ISO Latitude of the camera or input device as specified in ISO 12232.
0x8828 34856 Exif Exif.Photo.OECF Undefined Indicates the Opto-Electoric Conversion Function (OECF) specified in ISO 14524. <OECF> is the relationship between the camera optical input and the image values.
0x9000 36864 Exif Exif.Photo.ExifVersion Undefined The version of this standard supported. Nonexistence of this field is taken to mean nonconformance to the standard.
0x9003 36867 Exif Exif.Photo.DateTimeOriginal Ascii 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.
0x9004 36868 Exif Exif.Photo.DateTimeDigitized Ascii The date and time when the image was stored as digital data.
0x9101 37121 Exif Exif.Photo.ComponentsConfiguration Undefined 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.
0x9102 37122 Exif Exif.Photo.CompressedBitsPerPixel Rational Information specific to compressed data. The compression mode used for a compressed image is indicated in unit bits per pixel.
0x9201 37377 Exif Exif.Photo.ShutterSpeedValue SRational Shutter speed. The unit is the APEX (Additive System of Photographic Exposure) setting.
0x9202 37378 Exif Exif.Photo.ApertureValue Rational The lens aperture. The unit is the APEX value.
0x9203 37379 Exif Exif.Photo.BrightnessValue SRational The value of brightness. The unit is the APEX value. Ordinarily it is given in the range of -99.99 to 99.99.
0x9204 37380 Exif Exif.Photo.ExposureBiasValue SRational The exposure bias. The units is the APEX value. Ordinarily it is given in the range of -99.99 to 99.99.
0x9205 37381 Exif Exif.Photo.MaxApertureValue Rational 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.
0x9206 37382 Exif Exif.Photo.SubjectDistance Rational The distance to the subject, given in meters.
0x9207 37383 Exif Exif.Photo.MeteringMode Short The metering mode.
0x9208 37384 Exif Exif.Photo.LightSource Short The kind of light source.
0x9209 37385 Exif Exif.Photo.Flash Short This tag is recorded when an image is taken using a strobe light (flash).
0x920a 37386 Exif Exif.Photo.FocalLength Rational The actual focal length of the lens, in mm. Conversion is not made to the focal length of a 35 mm film camera.
0x9214 37396 Exif Exif.Photo.SubjectArea Short This tag indicates the location and area of the main subject in the overall scene.
0x927c 37500 Exif Exif.Photo.MakerNote Undefined A tag for manufacturers of Exif writers to record any desired information. The contents are up to the manufacturer.
0x9286 37510 Exif Exif.Photo.UserComment Comment 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.
0x9290 37520 Exif Exif.Photo.SubSecTime Ascii A tag used to record fractions of seconds for the <DateTime> tag.
0x9291 37521 Exif Exif.Photo.SubSecTimeOriginal Ascii A tag used to record fractions of seconds for the <DateTimeOriginal> tag.
0x9292 37522 Exif Exif.Photo.SubSecTimeDigitized Ascii A tag used to record fractions of seconds for the <DateTimeDigitized> tag.
0xa000 40960 Exif Exif.Photo.FlashpixVersion Undefined The FlashPix format version supported by a FPXR file.
0xa001 40961 Exif Exif.Photo.ColorSpace Short 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.
0xa002 40962 Exif Exif.Photo.PixelXDimension Long 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.
0xa003 40963 Exif Exif.Photo.PixelYDimension Long 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.
0xa004 40964 Exif Exif.Photo.RelatedSoundFile Ascii 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.
0xa005 40965 Exif Exif.Photo.InteroperabilityTag Long 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.
0xa20b 41483 Exif Exif.Photo.FlashEnergy Rational Indicates the strobe energy at the time the image is captured, as measured in Beam Candle Power Seconds (BCPS).
0xa20c 41484 Exif Exif.Photo.SpatialFrequencyResponse Undefined 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.
0xa20e 41486 Exif Exif.Photo.FocalPlaneXResolution Rational Indicates the number of pixels in the image width (X) direction per <FocalPlaneResolutionUnit> on the camera focal plane.
0xa20f 41487 Exif Exif.Photo.FocalPlaneYResolution Rational Indicates the number of pixels in the image height (V) direction per <FocalPlaneResolutionUnit> on the camera focal plane.
0xa210 41488 Exif Exif.Photo.FocalPlaneResolutionUnit Short Indicates the unit for measuring <FocalPlaneXResolution> and <FocalPlaneYResolution>. This value is the same as the <ResolutionUnit>.
0xa214 41492 Exif Exif.Photo.SubjectLocation Short 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.
0xa215 41493 Exif Exif.Photo.ExposureIndex Rational Indicates the exposure index selected on the camera or input device at the time the image is captured.
0xa217 41495 Exif Exif.Photo.SensingMethod Short Indicates the image sensor type on the camera or input device.
0xa300 41728 Exif Exif.Photo.FileSource Undefined 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.
0xa301 41729 Exif Exif.Photo.SceneType Undefined 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.
0xa302 41730 Exif Exif.Photo.CFAPattern Undefined 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.
0xa401 41985 Exif Exif.Photo.CustomRendered Short 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.
0xa402 41986 Exif Exif.Photo.ExposureMode Short 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.
0xa403 41987 Exif Exif.Photo.WhiteBalance Short This tag indicates the white balance mode set when the image was shot.
0xa404 41988 Exif Exif.Photo.DigitalZoomRatio Rational 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.
0xa405 41989 Exif Exif.Photo.FocalLengthIn35mmFilm Short 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.
0xa406 41990 Exif Exif.Photo.SceneCaptureType Short 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.
0xa407 41991 Exif Exif.Photo.GainControl Short This tag indicates the degree of overall image gain adjustment.
0xa408 41992 Exif Exif.Photo.Contrast Short This tag indicates the direction of contrast processing applied by the camera when the image was shot.
0xa409 41993 Exif Exif.Photo.Saturation Short This tag indicates the direction of saturation processing applied by the camera when the image was shot.
0xa40a 41994 Exif Exif.Photo.Sharpness Short This tag indicates the direction of sharpness processing applied by the camera when the image was shot.
0xa40b 41995 Exif Exif.Photo.DeviceSettingDescription Undefined 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.
0xa40c 41996 Exif Exif.Photo.SubjectDistanceRange Short This tag indicates the distance to the subject.
0xa420 42016 Exif Exif.Photo.ImageUniqueID Ascii 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.
0x0001 1 Iop Exif.Iop.InteroperabilityIndex Ascii 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.
0x0002 2 Iop Exif.Iop.InteroperabilityVersion Undefined Interoperability version
0x1000 4096 Iop Exif.Iop.RelatedImageFileFormat Ascii File format of image file
0x1001 4097 Iop Exif.Iop.RelatedImageWidth Long Image width
0x1002 4098 Iop Exif.Iop.RelatedImageLength Long Image height
0x0000 0 GPSInfo Exif.GPSInfo.GPSVersionID Byte 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).
0x0001 1 GPSInfo Exif.GPSInfo.GPSLatitudeRef Ascii Indicates whether the latitude is north or south latitude. The ASCII value 'N' indicates north latitude, and 'S' is south latitude.
0x0002 2 GPSInfo Exif.GPSInfo.GPSLatitude Rational 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.
0x0003 3 GPSInfo Exif.GPSInfo.GPSLongitudeRef Ascii Indicates whether the longitude is east or west longitude. ASCII 'E' indicates east longitude, and 'W' is west longitude.
0x0004 4 GPSInfo Exif.GPSInfo.GPSLongitude Rational 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.
0x0005 5 GPSInfo Exif.GPSInfo.GPSAltitudeRef Byte 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.
0x0006 6 GPSInfo Exif.GPSInfo.GPSAltitude Rational Indicates the altitude based on the reference in GPSAltitudeRef. Altitude is expressed as one RATIONAL value. The reference unit is meters.
0x0007 7 GPSInfo Exif.GPSInfo.GPSTimeStamp Rational Indicates the time as UTC (Coordinated Universal Time). <TimeStamp> is expressed as three RATIONAL values giving the hour, minute, and second (atomic clock).
0x0008 8 GPSInfo Exif.GPSInfo.GPSSatellites Ascii 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.
0x0009 9 GPSInfo Exif.GPSInfo.GPSStatus Ascii 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.
0x000a 10 GPSInfo Exif.GPSInfo.GPSMeasureMode Ascii Indicates the GPS measurement mode. "2" means two-dimensional measurement and "3" means three-dimensional measurement is in progress.
0x000b 11 GPSInfo Exif.GPSInfo.GPSDOP Rational Indicates the GPS DOP (data degree of precision). An HDOP value is written during two-dimensional measurement, and PDOP during three-dimensional measurement.
0x000c 12 GPSInfo Exif.GPSInfo.GPSSpeedRef Ascii 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.
0x000d 13 GPSInfo Exif.GPSInfo.GPSSpeed Rational Indicates the speed of GPS receiver movement.
0x000e 14 GPSInfo Exif.GPSInfo.GPSTrackRef Ascii Indicates the reference for giving the direction of GPS receiver movement. "T" denotes true direction and "M" is magnetic direction.
0x000f 15 GPSInfo Exif.GPSInfo.GPSTrack Rational Indicates the direction of GPS receiver movement. The range of values is from 0.00 to 359.99.
0x0010 16 GPSInfo Exif.GPSInfo.GPSImgDirectionRef Ascii Indicates the reference for giving the direction of the image when it is captured. "T" denotes true direction and "M" is magnetic direction.
0x0011 17 GPSInfo Exif.GPSInfo.GPSImgDirection Rational Indicates the direction of the image when it was captured. The range of values is from 0.00 to 359.99.
0x0012 18 GPSInfo Exif.GPSInfo.GPSMapDatum Ascii 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".
0x0013 19 GPSInfo Exif.GPSInfo.GPSDestLatitudeRef Ascii 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.
0x0014 20 GPSInfo Exif.GPSInfo.GPSDestLatitude Rational 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.
0x0015 21 GPSInfo Exif.GPSInfo.GPSDestLongitudeRef Ascii Indicates whether the longitude of the destination point is east or west longitude. ASCII "E" indicates east longitude, and "W" is west longitude.
0x0016 22 GPSInfo Exif.GPSInfo.GPSDestLongitude Rational 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.
0x0017 23 GPSInfo Exif.GPSInfo.GPSDestBearingRef Ascii Indicates the reference used for giving the bearing to the destination point. "T" denotes true direction and "M" is magnetic direction.
0x0018 24 GPSInfo Exif.GPSInfo.GPSDestBearing Rational Indicates the bearing to the destination point. The range of values is from 0.00 to 359.99.
0x0019 25 GPSInfo Exif.GPSInfo.GPSDestDistanceRef Ascii Indicates the unit used to express the distance to the destination point. "K", "M" and "N" represent kilometers, miles and knots.
0x001a 26 GPSInfo Exif.GPSInfo.GPSDestDistance Rational Indicates the distance to the destination point.
0x001b 27 GPSInfo Exif.GPSInfo.GPSProcessingMethod Undefined 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.
0x001c 28 GPSInfo Exif.GPSInfo.GPSAreaInformation Undefined 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.
0x001d 29 GPSInfo Exif.GPSInfo.GPSDateStamp Ascii A character string recording date and time information relative to UTC (Coordinated Universal Time). The format is "YYYY:MM:DD.".
0x001e 30 GPSInfo Exif.GPSInfo.GPSDifferential Short Indicates whether differential correction is applied to the GPS receiver.