CanonRaw Tags

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 UserComment string[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 Document 0x1010 ShutterReleaseMethod int16u 0 = Single Shot 2 = Continuous Shooting 0x1011 ShutterReleaseTiming int16u 0 = Priority on shutter 1 = Priority on focus 0x1016 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 Tags 0x1038 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 = Uncalibrated 0x10b5 RawJpgInfo - --> CanonRaw RawJpgInfo Tags 0x1803 ImageFormat - --> CanonRaw ImageFormat Tags 0x1804 RecordID int32u   0x1806 SelfTimerTime int32u   0x1807 TargetDistanceSetting float   0x180b SerialNumber UnknownNumber? int32u yes   0x180e 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 2 0x2005 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

CanonRaw MakeModel Tags

Index1 Tag Name Writable Values / Notes 0 Make string[6]   6 Model string

CanonRaw WhiteSample Tags

Index2 Tag Name Writable Values / Notes 1 WhiteSampleWidth no   2 WhiteSampleHeight no   3 WhiteSampleLeftBorder no   4 WhiteSampleTopBorder no   5 WhiteSampleBits no

CanonRaw RawJpgInfo Tags

Index2 Tag Name Writable Values / Notes 1 RawJpgQuality int16u 1 = Economy 2 = Normal 3 = Fine 5 = Superfine 2 RawJpgSize int16u 0 = Large 1 = Medium 2 = Small 3 RawJpgWidth int16u   4 RawJpgHeight int16u

CanonRaw ImageFormat Tags

Index4 Tag Name Writable Values / Notes 0 FileFormat int32u 0x10000 = JPEG (lossy) 0x10002 = JPEG (non-quantization) 0x10003 = JPEG (lossy/non-quantization toggled) 0x20001 = CRW 1 TargetCompressionRatio float

CanonRaw TimeStamp Tags

Index4 Tag Name Writable Values / Notes 0 DateTimeOriginal int32u   1 TimeZoneCode int32s   2 TimeZoneInfo int32u (set to 0x80000000 if TimeZoneCode is valid)

CanonRaw ImageInfo Tags

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

CanonRaw FlashInfo Tags

Index4 Tag Name Writable Values / Notes 0 FlashGuideNumber float   1 FlashThreshold float

CanonRaw ExposureInfo Tags

Index4 Tag Name Writable Values / Notes 0 ExposureCompensation float   1 ShutterSpeedValue float   2 ApertureValue float

CanonRaw DecoderTable Tags

Index4 Tag Name Writable Values / Notes 0 DecoderTableNumber no   2 CompressedDataOffset no   3 CompressedDataLength no

<-- ExifTool Tag Names