EXIF inspector

[Bernt Hansson]

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
Quality             |Fine
Flash Mode          |Off
Drive Mode          |Single
Unknown Tag         |0x0000
Focus Mode          |Single
Unknown Tag         |0xffff
Record Mode         |JPEG
Image Size          |Large
Easy Shooting Mode  |Full auto
Digital Zoom        |None
Contrast            |Normal
Saturation          |Normal
Sharpness           |Normal
ISO                 |Auto
Metering Mode       |Evaluative
Focus Range         |Auto
AF Point            |0x4006
Exposure Mode       |Easy shooting
Unknown Tag         |0x7fff
Lens Type           |0xffff
Long Focal Length of|60000
Short Focal Length o|5000
Focal Units per mm  |1000
Maximal Aperture    |3.40
Minimal Aperture    |8.00
Flash Activity      |0xffff
Flash Details       |
Unknown Tag         |0x0000
Unknown Tag         |0x0000
Focus Mode          |Continuous
AE Setting          |Normal AE
Image Stabilization |On
Display Aperture    |3.40
Zoom Source Width   |4000
Zoom Target Width   |4000
Unknown Tag         |0x0000
Unknown Tag         |0x0000
Photo Effect        |0xffff
Manual Flash Output |Off
Color Tone          |0x7fff
Unknown Tag         |0x7fff
Unknown Tag         |0x0000
Unknown Tag         |0x0000
Unknown Tag         |0xffff
Unknown Tag         |0x0078
Focal Type          |Zoom
Focal Length        |5000
Focal Plane X Size  |6.35 mm
Focal Plane Y Size  |4.75 mm
Unknown Tag         |
Auto ISO            |4.000
Shot ISO            |100
Measured EV         |2.38 EV
Target Aperture     |3.40
Target Exposure Time|1/25
Exposure Compensatio|0.00 EV
White Balance       |Auto
Slow Shutter        |Off
Sequence Number     |0
Unknown Tag         |0x0000
Unknown Tag         |0x0000
Unknown Tag         |0x0000
Flash Guide Number  |0.00
AF Point            |0x0000
Flash Exposure Compe|0.00 EV
AE Bracketing       |Off
AE Bracket Value    |0.00 EV
Unknown Tag         |0x0001
Focus Distance Upper|61 mm
Focus Distance Lower|0 mm
FNumber             |3.47
Exposure Time       |1/27
Unknown Tag         |0x0000
Bulb Duration       |0x0000
Unknown Tag         |0x0008
Camera Type         |Compact
Auto Rotate         |None
ND Filter           |Off
Self-timer          |Off
Unknown Tag         |0x0000
Unknown Tag         |0x0000
Unknown Tag         |0x0000
Manual Flash Output |Off
Image Type          |IMG:PowerShot SX130 IS JPEG
Firmware Version    |Firmware Version 1.01
Image Number        |121-0657
Owner Name          |
Unknown Tag         |
Unknown Tag         |
Unknown Tag         |
Unknown Tag         |
Unknown Tag         |
Unknown Tag         |
Unknown Tag         |
Unknown Tag         |
Unknown Tag         |
Unknown Tag         |
Unknown Tag         |
Unknown Tag         |
Unknown Tag         |
Unknown Tag         |
Unknown Tag         |
Unknown Tag         |
Unknown Tag         |
Unknown Tag         |
Unknown Tag         |
Unknown Tag         |


> 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).
>
>