These tags apply to CRW-format Canon RAW files and information in the APP0
"CIFF" segment of JPEG images. When writing CanonRaw/CIFF information, the
length of the information is preserved (and the new information is truncated
or padded as required) unless Writable is resize
. Currently, only
JpgFromRaw and ThumbnailImage are allowed to change size. See
canon_raw.html for a description of the Canon CRW
format.
CRW images also support the addition of a CanonVRD trailer, which in turn supports XMP. This trailer is created automatically if necessary when ExifTool is used to write XMP to a CRW image.
Tag ID Tag Name Writable Values / Notes 0x0000 NullRecord undef 0x0001 FreeBytes undef 0x0032 CanonColorInfo1 no 0x0805 CanonFileDescription
UserCommentstring[32]
string[256]0x080a CanonRawMakeModel - --> CanonRaw MakeModel Tags 0x080b CanonFirmwareVersion string[32] 0x080c ComponentVersion string 0x080d ROMOperationMode string[8] 0x0810 OwnerName string[32] 0x0815 CanonImageType string[32] 0x0816 OriginalFileName string[32] 0x0817 ThumbnailFileName string[32] 0x100a TargetImageType int16u 0 = Real-world Subject
1 = Written Document0x1010 ShutterReleaseMethod int16u 0 = Single Shot
2 = Continuous Shooting0x1011 ShutterReleaseTiming int16u 0 = Priority on shutter
1 = Priority on focus0x1016 ReleaseSetting int16u 0x101c BaseISO int16u 0x1028 CanonFlashInfo? int16u[4] 0x1029 CanonFocalLength - --> Canon FocalLength Tags 0x102a CanonShotInfo - --> Canon ShotInfo Tags 0x102c CanonColorInfo2 no 0x102d CanonCameraSettings - --> Canon CameraSettings Tags 0x1030 WhiteSample - --> CanonRaw WhiteSample Tags 0x1031 SensorInfo - --> Canon SensorInfo Tags 0x1033 CustomFunctions10D
CustomFunctionsD30
CustomFunctionsD60
CustomFunctionsUnknown-
-
-
---> CanonCustom Functions10D Tags
--> CanonCustom FunctionsD30 Tags
--> CanonCustom FunctionsD30 Tags
--> CanonCustom FuncsUnknown Tags0x1038 CanonAFInfo - --> Canon AFInfo Tags 0x1093 CanonFileInfo - --> Canon FileInfo Tags 0x10a9 ColorBalance - --> Canon ColorBalance Tags 0x10ae ColorTemperature int16u 0x10b4 ColorSpace int16u 1 = sRGB
2 = Adobe RGB
65535 = Uncalibrated0x10b5 RawJpgInfo - --> CanonRaw RawJpgInfo Tags 0x1803 ImageFormat - --> CanonRaw ImageFormat Tags 0x1804 RecordID int32u 0x1806 SelfTimerTime int32u 0x1807 TargetDistanceSetting float 0x180b SerialNumber
UnknownNumber?int32u
yes0x180e TimeStamp - --> CanonRaw TimeStamp Tags 0x1810 ImageInfo - --> CanonRaw ImageInfo Tags 0x1813 FlashInfo - --> CanonRaw FlashInfo Tags 0x1814 MeasuredEV float (this is the Canon name for what could better be called MeasuredLV, and should be close to the calculated LightValue for a proper exposure with most models) 0x1817 FileNumber int32u 0x1818 ExposureInfo - --> CanonRaw ExposureInfo Tags 0x1834 CanonModelID int32u --> Canon CanonModelID Values
(this is the complete list of model ID numbers, but note that many of these models do not produce CRW images)0x1835 DecoderTable - --> CanonRaw DecoderTable Tags 0x183b SerialNumberFormat int32u 0x90000000 = Format 1
0xa0000000 = Format 20x2005 RawData no 0x2007 JpgFromRaw resize^ 0x2008 ThumbnailImage resize^ 0x2804 ImageDescription - --> CanonRaw Tags 0x2807 CameraObject - --> CanonRaw Tags 0x3002 ShootingRecord - --> CanonRaw Tags 0x3003 MeasuredInfo - --> CanonRaw Tags 0x3004 CameraSpecification - --> CanonRaw Tags 0x300a ImageProps - --> CanonRaw Tags 0x300b ExifInformation - --> CanonRaw Tags
Index1 Tag Name Writable Values / Notes 0 Make string[6] 6 Model string
Index2 Tag Name Writable Values / Notes 1 WhiteSampleWidth no 2 WhiteSampleHeight no 3 WhiteSampleLeftBorder no 4 WhiteSampleTopBorder no 5 WhiteSampleBits no
Index2 Tag Name Writable Values / Notes 1 RawJpgQuality int16u 1 = Economy
2 = Normal
3 = Fine
5 = Superfine2 RawJpgSize int16u 0 = Large
1 = Medium
2 = Small3 RawJpgWidth int16u 4 RawJpgHeight int16u
Index4 Tag Name Writable Values / Notes 0 FileFormat int32u 0x10000 = JPEG (lossy)
0x10002 = JPEG (non-quantization)
0x10003 = JPEG (lossy/non-quantization toggled)
0x20001 = CRW1 TargetCompressionRatio float
Index4 Tag Name Writable Values / Notes 0 DateTimeOriginal int32u 1 TimeZoneCode int32s 2 TimeZoneInfo int32u (set to 0x80000000 if TimeZoneCode is valid)
Index4 Tag Name Writable Values / Notes 0 ImageWidth no 1 ImageHeight no 2 PixelAspectRatio no 3 Rotation int32s 4 ComponentBitDepth no 5 ColorBitDepth no 6 ColorBW no
Index4 Tag Name Writable Values / Notes 0 FlashGuideNumber float 1 FlashThreshold float
Index4 Tag Name Writable Values / Notes 0 ExposureCompensation float 1 ShutterSpeedValue float 2 ApertureValue float
Index4 Tag Name Writable Values / Notes 0 DecoderTableNumber no 2 CompressedDataOffset no 3 CompressedDataLength no