EXIF inspector

Waitman Gobble gobble.wa at gmail.com
Sat Aug 25 15:58:52 UTC 2012


On Fri, Aug 24, 2012 at 9:47 PM, Gary Aitken <freebsd at dreamchaser.org>wrote:

> On 08/24/12 14:54, Bernt Hansson wrote:
> > 2012-08-24 17:14, Gary Aitken skrev:
> >> On 08/24/12 05:05, Bernt Hansson wrote:
> >>> 2012-08-23 19:14, Gary Aitken skrev:
> >>>
> >>>> On 08/23/12 08:38, Polytropon wrote:
> >>>>> On Thu, 23 Aug 2012 00:00:08 -0600, Gary Aitken wrote:
> >>>>>> For the photo folks --
> >>>>>>
> >>>>>> What do you use for inspecting EXIF data?
> >>>>>> I've tried
> >>>>>>      exif
> >>>>>>      exiftags
> >>>>>>      exifprobe
> >>>>>> and none of them show the full compliment of tags present on my oly
> pen-ep3.
> >>>>>> In particular, they omit most of the vendor specific stuff,
> >>>>>> and they seem to display different parts of things, but not
> everything.
> >> ...
> >>>> bah --
> >>>>     exif doesn't report all the tags
> >>>
> >>> Try exif -l filename and it will show you all exif fields and the
> fields that's in the picture.
> >>>
> >>>   From man exif
> >>>
> >>> -l, --list-tags
> >>>         List all known EXIF tags and IFDs.  A JPEG image  must  be
>  pro-
> >>>         vided, and those tags which appear in the file are shown with
> an
> >>>         asterisk in the corresponding position in the list.
> >>
> >> exif appears to list only "known" exif tags, and seems to omit vendor
> specific
> >> information.  Much of the important information about an image is
> stored in the
> >> vendor specific tags.
> >
> > exif -'|' filename show the camera vendors stuff
> >
> > kw# exif -'|' IMG_0657.JPG
> > MakerNote contains 109 values:
> > Macro Mode          |Normal
> > Self-timer          |Off
> ...
> >
> >> In the case of my oly pen-ep3, exif -l lists 143 known exif tags,
> >> of which only 49 are used by my camera.  However, exiv2 shows over
> >> 300 pieces of relevant information which actually appear, and well over
> 100
> >> I can identify as relevant to the particular image (the others may or
> may not
> >> be relevant, I just can't interpret them; some are unlabelled).
>
> Perhaps it depends on the camera; or perhaps Canon puts all of the
> additional
> information in the MakerNote.  For my oly, the MakerNote contains next to
> nothing:
>
> %exif -'|' Bird_0001B_20111214_300mm_IS_30s_Flicker.jpg
> MakerNote contains 7 values:
> Speed/Sequence/Panor|Normal/0/0
> Camera ID           |OLYMPUS DIGITAL CAMERA
> Unknown Tag         |
> Unknown Tag         |
> Unknown Tag         |
> Unknown Tag         |
> Unknown Tag         |
>
> Another possibility is you are missing some info you aren't aware of.
> I'm curious to know if Canon stashes things in other places;
> I know nikon does similar to the way oly does as reported below;
> exiv2 -u -p a on a nikon raw file shows 112 nikon specific values.
>
> %man exif
>   ...
>   As EXIF tags are read, any unknown ones are discarded...
>
> %exiv2 -u -p a Bird_0001B_20111214_300mm_IS_30s_Flicker.jpg
> Exif.Image.ImageDescription                  Ascii      32  OLYMPUS
> DIGITAL CAMERA
> Exif.Image.Make                              Ascii      24  OLYMPUS
> IMAGING CORP.
> Exif.Image.Model                             Ascii      17  E-P3
> Exif.Image.Orientation                       Short       1  top, left
> Exif.Image.XResolution                       Rational    1  314
> Exif.Image.YResolution                       Rational    1  314
> Exif.Image.ResolutionUnit                    Short       1  inch
> Exif.Image.Software                          Ascii      32  Version 1.0
> Exif.Image.DateTime                          Ascii      20  2011:12:14
> 13:46:47
> Exif.Image.Artist                            Ascii      64  Gary Aitken
> Exif.Image.YCbCrPositioning                  Short       1  Co-sited
> Exif.Image.Copyright                         Ascii      64  Dona Aitken
> Exif.Image.ExifTag                           Long        1  218
> Exif.Photo.ExposureTime                      Rational    1  1/30 s
> Exif.Photo.FNumber                           Rational    1  F6.7
> Exif.Photo.ExposureProgram                   Short       1  Aperture
> priority
> Exif.Photo.ISOSpeedRatings                   Short       1  640
> Exif.Photo.ExifVersion                       Undefined   4  2.21
> Exif.Photo.DateTimeOriginal                  Ascii      20  2011:12:14
> 13:46:47
> Exif.Photo.DateTimeDigitized                 Ascii      20  2011:12:14
> 13:46:47
> Exif.Photo.ComponentsConfiguration           Undefined   4  YCbCr
> Exif.Photo.ExposureBiasValue                 SRational   1  0 EV
> Exif.Photo.MaxApertureValue                  Rational    1  F4.8
> Exif.Photo.MeteringMode                      Short       1  Spot
> Exif.Photo.LightSource                       Short       1  Cloudy weather
> Exif.Photo.Flash                             Short       1  Yes, did not
> fire
> Exif.Photo.FocalLength                       Rational    1  300.0 mm
> Exif.Photo.MakerNote                         Undefined 10368  (Binary
> value suppressed)
> Exif.MakerNote.Offset                        Long        1  3208
> Exif.MakerNote.ByteOrder                     Ascii       3  II
> Exif.Olympus2.SpecialMode                    Long        3  Normal
> Exif.Olympus2.CameraID                       Undefined  32  OLYMPUS
> DIGITAL CAMERA
> Exif.Olympus2.Equipment                      Ifd         1  102
> Exif.OlympusEq.EquipmentVersion              Undefined   4  1.00
> Exif.OlympusEq.CameraType                    Ascii       6  S0032
> Exif.OlympusEq.SerialNumber                  Ascii      32  B9U504279
> Exif.OlympusEq.InternalSerialNumber          Ascii      32
>  4124110000231102
> Exif.OlympusEq.FocalPlaneDiagonal            Rational    1  2160/100
> Exif.OlympusEq.BodyFirmwareVersion           Long        1  4102
> Exif.OlympusEq.LensType                      Byte        6  0 0 8 16 0 0
> Exif.OlympusEq.LensSerialNumber              Ascii      32  340007174
> Exif.OlympusEq.LensModel                     Ascii      32  OLYMPUS
> M.75-300mm F4.8-6.7
> Exif.OlympusEq.LensFirmwareVersion           Long        1  4096
> Exif.OlympusEq.MaxApertureAtMinFocal         Short       1  1159
> Exif.OlympusEq.MaxApertureAtMaxFocal         Short       1  1405
> Exif.OlympusEq.MinFocalLength                Short       1  75
> Exif.OlympusEq.MaxFocalLength                Short       1  300
> Exif.OlympusEq.MaxApertureAtCurrentFocal     Short       1  1428
> Exif.OlympusEq.LensProperties                Short       1  49472
> Exif.OlympusEq.Extender                      Byte        6  None
> Exif.OlympusEq.ExtenderSerialNumber          Ascii      32
> Exif.OlympusEq.ExtenderModel                 Ascii      32
> Exif.OlympusEq.ExtenderFirmwareVersion       Long        1  0
> Exif.OlympusEq.0x0403                        Ascii      32
> Exif.OlympusEq.FlashType                     Short       1  None
> Exif.OlympusEq.FlashModel                    Short       1  None
> Exif.OlympusEq.FlashFirmwareVersion          Long        1  0
> Exif.OlympusEq.FlashSerialNumber             Ascii      32
> Exif.Olympus2.CameraSettings                 Ifd         1  408
> Exif.OlympusCs.CameraSettingsVersion         Undefined   4  1.00
> Exif.OlympusCs.PreviewImageValid             Long        1  Yes
> Exif.OlympusCs.PreviewImageStart             Long        1  5803244
> Exif.OlympusCs.PreviewImageLength            Long        1  565426
> Exif.OlympusCs.ExposureMode                  Short       1
>  Aperture-priority AE
> Exif.OlympusCs.AELock                        Short       1  Off
> Exif.OlympusCs.MeteringMode                  Short       1  Spot
> Exif.OlympusCs.ExposureShift                 SRational   1  0/100
> Exif.OlympusCs.MacroMode                     Short       1  Off
> Exif.OlympusCs.FocusMode                     Short       2  MF10
> Exif.OlympusCs.FocusProcess                  Short       2  AF Used
> Exif.OlympusCs.AFSearch                      Short       1  Ready
> Exif.OlympusCs.AFAreas                       Long       64  1902874257 0 0
> 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
>  0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
> Exif.OlympusCs.AFPointSelected               SRational   5  0/0 255/510
> 252/510 255/510 252/510
> Exif.OlympusCs.0x0306                        Byte        1  0
> Exif.OlympusCs.AFFineTuneAdj                 SShort      3  0 0 0
> Exif.OlympusCs.FlashMode                     Short       1  Fill-in
> Exif.OlympusCs.FlashExposureComp             SRational   1  0/256
> Exif.OlympusCs.0x0402                        Short       1  0
> Exif.OlympusCs.FlashRemoteControl            Short       1  Off
> Exif.OlympusCs.FlashControlMode              Short       4  Off
> Exif.OlympusCs.FlashIntensity                SRational   4  0/0 0/0 0/0 0/0
> Exif.OlympusCs.ManualFlashStrength           SRational   4  0/0 0/0 0/0 0/0
> Exif.OlympusCs.WhiteBalance                  Short       1  6000K (Cloudy)
> Exif.OlympusCs.WhiteBalanceTemperature       Short       1  6000
> Exif.OlympusCs.WhiteBalanceBracket           SShort      2  0 0
> Exif.OlympusCs.CustomSaturation              SShort      3  1 -5 5
> Exif.OlympusCs.ModifiedSaturation            Short       1  Off
> Exif.OlympusCs.ContrastSetting               SShort      3  0 -5 5
> Exif.OlympusCs.SharpnessSetting              SShort      3  0 -5 5
> Exif.OlympusCs.ColorSpace                    Short       1  sRGB
> Exif.OlympusCs.0x0508                        Short       1  0
> Exif.OlympusCs.SceneMode                     Short       1  Standard
> Exif.OlympusCs.NoiseReduction                Short       1
> Exif.OlympusCs.DistortionCorrection          Short       1  Off
> Exif.OlympusCs.ShadingCompensation           Short       1  Off
> Exif.OlympusCs.CompressionFactor             Rational    1  4/1
> Exif.OlympusCs.0x050e                        Short       1  0
> Exif.OlympusCs.Gradation                     SShort      4  Normal,
> Auto-Override
> Exif.OlympusCs.PictureMode                   Short       2  Natural
> Exif.OlympusCs.PictureModeSaturation         SShort      3  1 -2 2
> Exif.OlympusCs.PictureModeHue                Short       1  0
> Exif.OlympusCs.PictureModeContrast           SShort      3  0 -2 2
> Exif.OlympusCs.PictureModeSharpness          SShort      3  0 -2 2
> Exif.OlympusCs.PictureModeBWFilter           SShort      1  n/a
> Exif.OlympusCs.PictureModeTone               SShort      1  n/a
> Exif.OlympusCs.NoiseFilter                   SShort      3  Off
> Exif.OlympusCs.0x0528                        Short       1  0
> Exif.OlympusCs.ArtFilter                     Short       4  Off
> ...
> Exif.OlympusCs.DriveMode                     Short       3  0 0 0
> Exif.OlympusCs.PanoramaMode                  Short       2  0 0
> Exif.OlympusCs.ImageStabilization            Long        1  On, Mode 1
> Exif.OlympusCs.0x0800                        Short       1  1
> Exif.OlympusCs.ManometerPressure             Short       1  0
> Exif.OlympusCs.ManometerReading              SLong       2  0 0
> Exif.OlympusCs.ExtendedWBDetect              Short       1  Off
> Exif.Olympus2.RawDevelopment                 Ifd         1  1158
> Exif.OlympusRd.RawDevVersion                 Undefined   4  1.00
> Exif.OlympusRd.ExposureBiasValue             SRational   1  0/1
> Exif.OlympusRd.WhiteBalanceValue             Short       1  0
> Exif.OlympusRd.WBFineAdjustment              SShort      1  0
> Exif.OlympusRd.GrayPoint                     Short       3  0 0 0
> Exif.OlympusRd.SaturationEmphasis            SShort      3  0 0 0
> Exif.OlympusRd.MemoryColorEmphasis           Short       1  0
> Exif.OlympusRd.ContrastValue                 SShort      3  0 0 0
> Exif.OlympusRd.SharpnessValue                SShort      3  0 0 0
> Exif.OlympusRd.ColorSpace                    Short       1  sRGB
> Exif.OlympusRd.Engine                        Short       1  High Speed
> Exif.OlympusRd.NoiseReduction                Short       1
> Exif.OlympusRd.EditStatus                    Short       1  Original
> Exif.OlympusRd.Settings                      Short       1
> Exif.Olympus2.ImageProcessing                Ifd         1  1332
> Exif.OlympusIp.ImageProcessingVersion        Undefined   4  1.12
> Exif.OlympusIp.WB_RBLevels                   Short       4  574 362 260 256
> Exif.OlympusIp.ColorMatrix                   Short       9  372 65448
> 65508 65476 388 65464 6 65396 390
> Exif.OlympusIp.BlackLevel                    Short       4  64 64 64 65
> Exif.OlympusIp.GainBase                      Short       1  256
> Exif.OlympusIp.CropLeft                      Short       2  8 0
> Exif.OlympusIp.CropTop                       Short       2  8 0
> Exif.OlympusIp.CropWidth                     Long        1  4032
> Exif.OlympusIp.CropHeight                    Long        1  3024
> ...
> Exif.OlympusIp.NoiseReduction                Short       1
> Exif.OlympusIp.DistortionCorrection          Short       1  Off
> Exif.OlympusIp.ShadingCompensation           Short       1  Off
> Exif.OlympusIp.0x101b                        SShort      2  0 0
> Exif.OlympusIp.MultipleExposureMode          Short       2  Off
> ...
> Exif.OlympusIp.FaceDetect                    Long        3  Off
> Exif.OlympusIp.FaceDetectArea                Short     192
> ...
> Exif.Olympus2.FocusInfo                      Ifd         1  2358
> Exif.OlympusFi.FocusInfoVersion              Undefined   4  1.00
> ...
> Exif.OlympusFi.AutoFocus                     Short       1  Off
> ...
> Exif.OlympusFi.SceneDetect                   Short       1  0
> Exif.OlympusFi.SceneArea                     Long        8  0 0 0 0 0 0 0
> 2046824464
> Exif.OlympusFi.SceneDetectData               Long      720  0 0 0 0 0 0 0
> 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
> ...
> Exif.OlympusFi.ZoomStepCount                 Short       1  31
> Exif.OlympusFi.FocusStepCount                Short       1  556
> Exif.OlympusFi.0x0302                        Short       1  4
> Exif.OlympusFi.FocusStepInfinity             Short       1  0
> Exif.OlympusFi.FocusStepNear                 Short       1  0
> Exif.OlympusFi.FocusDistance                 Rational    1  8365/10
> Exif.OlympusFi.0x0307                        Short       1  0
> Exif.OlympusFi.AFPoint                       Short       1  Left (or n/a)
> ...
> Exif.OlympusFi.ExternalFlash                 Short       2  Off
> Exif.OlympusFi.0x1202                        Short       1  0
> Exif.OlympusFi.ExternalFlashGuideNumber      SRational   1  0/1
> Exif.OlympusFi.ExternalFlashBounce           Short       1  Bounce or Off
> Exif.OlympusFi.ExternalFlashZoom             Rational    1  0/1
> Exif.OlympusFi.0x1206                        Short       1  0
> Exif.OlympusFi.0x1207                        Short       1  0
> Exif.OlympusFi.InternalFlash                 Short       1  Off
> Exif.OlympusFi.ManualFlash                   Short       2  Off 1
> Exif.OlympusFi.0x120a                        Short       1  0
> Exif.OlympusFi.SensorTemperature             SShort      1  317
> Exif.OlympusFi.0x1501                        Long        2  0 0
> Exif.OlympusFi.0x1502                        Short       1  0
> Exif.OlympusFi.ImageStabilization            Undefined  80  33 49 49 0 0
> 147 35 98 2 98 2 245 236 240 237 86 86 151 0 98 0 0 0 1 1 1
> ...
> Exif.Photo.UserComment                       Undefined 125
>
> Exif.Photo.FlashpixVersion                   Undefined   4  1.00
> Exif.Photo.ColorSpace                        Short       1  sRGB
> Exif.Photo.PixelXDimension                   Long        1  4032
> Exif.Photo.PixelYDimension                   Long        1  3024
> Exif.Photo.InteroperabilityTag               Long        1  686
> Exif.Iop.InteroperabilityIndex               Ascii       4  R98
> Exif.Iop.InteroperabilityVersion             Undefined   4  1.00
> Exif.Photo.FileSource                        Undefined   1  Digital still
> camera
> Exif.Photo.CustomRendered                    Short       1  Normal process
> Exif.Photo.ExposureMode                      Short       1  Auto
> Exif.Photo.WhiteBalance                      Short       1  Manual
> Exif.Photo.DigitalZoomRatio                  Rational    1  1.0
> Exif.Photo.SceneCaptureType                  Short       1  Standard
> Exif.Photo.GainControl                       Short       1  High gain up
> Exif.Photo.Contrast                          Short       1  Normal
> Exif.Photo.Saturation                        Short       1  High
> Exif.Photo.Sharpness                         Short       1  Normal
> Exif.Image.PrintImageMatching                Undefined 528  (Binary value
> suppressed)
> Exif.Thumbnail.Compression                   Short       1  JPEG
> (old-style)
> Exif.Thumbnail.XResolution                   Rational    1  72
> Exif.Thumbnail.YResolution                   Rational    1  72
> Exif.Thumbnail.ResolutionUnit                Short       1  inch
> Exif.Thumbnail.JPEGInterchangeFormat         Long        1  13588
> Exif.Thumbnail.JPEGInterchangeFormatLength   Long        1  4387
>
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I've always used /usr/ports/graphics/jhead which has seemed to me to show
the most information.... here is a basic comparison.. but the exiv2 is
cool, didn't realize it would work with RAW files.. thanks for that
information!

Waitman Gobble
San Jose California USA


# jhead -v IMG_8203.thumb.jpg
Exif header 1384 bytes long
Exif section in Intel order
(dir has 12 entries)
    ImageDescription = "?"
    Make = "Canon?"
    Model = "EOS REBEL T2i?"
    Orientation = 8
    XResolution = 300/1
    YResolution = 300/1
    PlanarConfiguration = 1
    ResolutionUnit = 2
    Software = "dcraw v9.12?"
    DateTime = "2012:07:15 14:23:58"
    Artist = "?"
    ExifOffset = 294
    Exif Dir:(dir has 4 entries)
        ExposureTime = 5065/1000000
        FNumber = 11313708/1000000
        ISOSpeedRatings = 100
        FocalLength = 100000000/1000000
Jpeg section marker 0xdb size 132
JPEG image is 5184w * 3456h, 3 color components, 8 bits per sample
Jpeg section marker 0xc4 size 418
File name    : IMG_8203.thumb.jpg
File size    : 3373614 bytes
File date    : 2012:07:15 19:07:52
Camera make  : Canon
Camera model : EOS REBEL T2i
Date/Time    : 2012:07:15 14:23:58
Resolution   : 5184 x 3456
Orientation  : rotate 270
Focal length : 100.0mm
Exposure time: 0.0051 s  (1/197)
Aperture     : f/11.3
ISO equiv.   : 100

# exiv2 -v IMG_8203.thumb.jpg
File 1/1: IMG_8203.thumb.jpg
File name       : IMG_8203.thumb.jpg
File size       : 3373614 Bytes
MIME type       : image/jpeg
Image size      : 5184 x 3456
Camera make     : Canon
Camera model    : EOS REBEL T2i
Image timestamp :
Image number    :
Exposure time   : 1/197 s
Aperture        : F11
Exposure bias   :
Flash           :
Flash bias      :
Focal length    : 100.0 mm
Subject distance:
ISO speed       : 100
Exposure mode   :
Metering mode   :
Macro mode      :
Image quality   :
Exif Resolution :
White balance   :
Thumbnail       : None
Copyright       :
Exif comment    :


# exiv2 -v IMG_8203.CR2
File 1/1: IMG_8203.CR2
File name       : IMG_8203.CR2
File size       : 28932682 Bytes
MIME type       : image/x-canon-cr2
Image size      : 5184 x 3456
Camera make     : Canon
Camera model    : Canon EOS REBEL T2i
Image timestamp : 2012:07:15 14:23:58
Image number    :
Exposure time   : 1/200 s
Aperture        : F11
Exposure bias   : 0 EV
Flash           : Yes, compulsory
Flash bias      : 0 EV
Focal length    : 100.0 mm
Subject distance: 0
ISO speed       : 100
Exposure mode   : Manual
Metering mode   : Multi-segment
Macro mode      : Off
Image quality   : RAW
Exif Resolution : 5184 x 3456
White balance   : Auto
Thumbnail       : image/jpeg, 16798 Bytes
Copyright       : Copyright 2011 waitman at waitman.net
Exif comment    :


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