Composite Tags

The values of the composite tags are derived from the values of other tags. These are convenience tags which are calculated after all other information is extracted.
Tag Name WritableDerived FromValues / Notes
Aperture N FNumber
ApertureValue
 
CFAPattern N CFARepeatPatternDim
CFAPattern2
 
ConditionalFEC N FlashExposureComp
FlashBits
 
DateTimeCreated N DateCreated
TimeCreated
 
DateTimeOriginal N DateTimeCreated  
DriveMode N ContinuousDrive
Self-timer
0 = Continuous shooting
1 = Self-timer Operation
2 = Single-frame shooting
FlashOn N FlashBits
Flash
0 = Off
1 = On
FlashType N FlashBits 0 = Built-In Flash
1 = External
FocalLength35efl N FocalLength
ScaleFactor35efl
(this value may be incorrect if image has been resized)
GPSDateTime N GPSDateStamp
GPSTimeStamp
 
ImageSize N ImageWidth
ImageHeight
 
JpgFromRaw Y JpgFromRawStart
JpgFromRawLength
 
Lens N ShortFocal
LongFocal
FocalUnits
 
Lens35efl N ShortFocal
LongFocal
FocalUnits
Lens
ScaleFactor35efl
 
LensSpec N Nikon:Lens
Nikon:LensType
 
PreviewImage Y PreviewImageStart
PreviewImageLength
PreviewImageValid
 
PreviewImageSize N PreviewImageWidth
PreviewImageHeight
 
ProcessGeoTiff N GeoTiffDirectory
GeoTiffDoubleParams
GeoTiffAsciiParams
 
RedEyeReduction N CanonFlashMode
FlashBits
0 = Off
1 = On
ScaleFactor35efl N FocalLength
FocalLengthIn35mmFormat
FocalPlaneDiagonal
FocalPlaneResolutionUnit
FocalPlaneXResolution
FocalPlaneYResolution
CanonImageWidthAsShot
CanonImageHeightAsShot
ExifImageWidth
ExifImageLength
ImageWidth
ImageHeight
(this value may be incorrect if image has been resized)
ShootingMode N CanonExposureMode
EasyMode
 
ShutterCurtainHack N FlashBits
ShutterCurtainSync
0 = 1st-curtain sync
1 = 2nd-curtain sync
ShutterSpeed N ExposureTime
ShutterSpeedValue
BulbDuration
 
SubSecDateTimeOriginal N DateTimeOriginal
SubSecTimeOriginal
 
ThumbnailImage Y ThumbnailOffset
ThumbnailLength
 

<-- ExifTool Tag Names


(This document generated automatically by Image::ExifTool::BuildTagLookup)
Last revised May 5, 2005