Some tags you NEVER want to see. Others have some values of interest and some which are better filtered
The table below has 196 "noise" items that will never clutter reports again. My MOST_USED_EXIF_TABLE!
Ex: ColorTemperature: 0.0
This can be caused by bad software destroying information and has no informative relevant to the image (and has zero probability on a Maxwell-Boltzmann distribution)
The table has a key and an optional value. A NULL value destroys the key on sight. A TRUE value will be matched against the EXIF value and if found will delete the key/val pair. The values can be OR (|) delimited to match on any of them.
This is useful when you want to see some detail but not all of the arcane minutia. Here is the difference between -a (most, all but worst) and -A (and the kitchen sink)
get.exif.pl -sA m:/tmp/br5/BPB_5439.NEF | gr.pl -v SCAL > BPB_5439.NEF.all.exf
get.exif.pl -sa m:/tmp/br5/BPB_5439.NEF | gr.pl -v SCAL > BPB_5439.NEF.most.exf
dif BPB_5439.NEF.most.exf BPB_5439.NEF.all.exf
27 Unique lines from "BPB_5439.NEF.all.exf":
013) CFAPattern => [Red,Green][Green,Blue]
026) DigitalZoomRatio => 1 << NO digital zoom on D800E; NEVER want to see
042) FileCreateDate => 2013-05-14 12:18:08
043) FileExtension => NEF
047) FileSource => Digital Camera
068) FocalLengthIn35mmFormat => 16 mm << 35mmFormat dups NEVER have useful info
075) HueAdjustment => None
088) Lens => 16-35mm f/4
094) LightSource => Unknown
096) Make => NIKON CORPORATION
099) MaxApertureValue => 4.0
101) Megapixels => 12.2
115) PlanarConfiguration => Chunky
124) ReferenceBlackWhite => 0 255 0 255 0 255
126) RowsPerStrip => 2844
128) ScaleFactor35efl => 1.0
129) SceneCaptureType => Standard
130) SceneType => Directly photographed
131) SensingMethod => One-chip color area
135) ShutterSpeed => 1/80 << GOOD info, but alias for ExposureTime. Units are SECONDS so speed is wrong label, time is right
136) StripByteCounts => 14660380
137) StripOffsets => 1665216
138) SubjectDistanceRange => Unknown << NO_IDEA is better left unsaid
140) SubSecDateTimeOriginal => 2011-05-15 14:47:41.74
142) SubSecTimeDigitized => 74
143) SubSecTimeOriginal => 74
144) TIFF-EPStandardID => 1 0 0 0
select * from exif_junk order by 2 -> 196 rows
cid, ckey, cval
1, AlreadyApplied,
2, APP14Flags0,
3, APP14Flags1,
4, ApplicationRecordVersion, << No_Idea what this is; don't need to overlook it
5, AutoLateralCA,
6, AutoWhiteVersion,
177, BitsPerSample, 8
192, BlackClip, 0.000000
7, BlueHue, 0
8, BlueMatrixColumn, 0.14919 0.06322 0.74457|0.14305 0.06
...