CanonRaw Tags

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 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 - -->
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 - -->
0x102a CanonShotInfo - -->
0x102c CanonColorInfo2 no  
0x102d CanonCameraSettings - -->
0x1030 WhiteSample - -->
0x1031 SensorInfo - -->
0x1033 CustomFunctions10D
CustomFunctionsD30
CustomFunctionsD60
CustomFunctionsUnknown 		-
-
-
- 		-->
-->
-->
-->
0x1038 CanonAFInfo - -->
0x1093 CanonFileInfo - -->
0x10a9 ColorBalance - -->
0x10ae ColorTemperature int16u  
0x10b4 ColorSpace int16u 1 = sRGB
2 = Adobe RGB
65535 = Uncalibrated
0x10b5 RawJpgInfo - -->
0x1803 ImageFormat - -->
0x1804 RecordID int32u  
0x1806 SelfTimerTime int32u  
0x1807 TargetDistanceSetting float  
0x180b SerialNumber
UnknownNumber? 		int32u
yes 		 
0x180e TimeStamp - -->
0x1810 ImageInfo - -->
0x1813 FlashInfo - -->
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 - -->
0x1834 CanonModelID int32u -->
(this is the complete list of model ID numbers, but note that many of these models do not produce CRW images)
0x1835 DecoderTable - -->
0x183b SerialNumberFormat int32u 0x90000000 = Format 1
0xa0000000 = Format 2
0x2005 RawData no  
0x2007 JpgFromRaw resize^  
0x2008 ThumbnailImage resize^  
0x2804 ImageDescription - -->
0x2807 CameraObject - -->
0x3002 ShootingRecord - -->
0x3003 MeasuredInfo - -->
0x3004 CameraSpecification - -->
0x300a ImageProps - -->
0x300b ExifInformation - -->

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

Index2 Tag Name Writable Values / Notes
1 WhiteSample no  
2 WhiteSample no  
3 WhiteSampleLeft no  
4 WhiteSampleTop no  
5 WhiteSampleBits no  

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 RawJpg int16u  
4 RawJpg int16u  

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  

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 Image no  
1 Image 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  
(This document generated automatically by Image::ExifTool::BuildTagLookup)
Last revised Nov 28, 2019