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Summary

Where can I find Exif codes of the type shown below that cover all features of my cameras? (I have mainly Sony cameras but a more general resource would be welcome).


I have too many Sony cameras :-).
I recently bought a Sony A7RIV. It further complicates my requirement. I wish to display selected camera parameters on screen when editing photos, or to search and subset photos based on specific Exif codes.

I am mostly using Irfanview (!) for this task but the question is not editor specific

I am aware of many codes. Some are available via the Irfanview help files and a few others I have obtained from other sources. Web searches mostly turn up tables with obscure codes that seem t have no relationship to the EXIF addresses.

The A7RIV has many additional codes that I wish to utilise. e.g.:

  • JPG quality: Extra Fine/Fine/Standard.
  • APSC JPEG resolution: 26/15/6 Mp

As examples only of the sort of information and codes I am aware of:

$m       megapixels  
$W  image pixel width    
$H  image pixel height  
$E45094  Lens stabilisation on/off  
$E34855  ISO   
$E33437  Aperture  
$E33434  Shutter speed ...

Many more ...

QUESTION: Where can I find Exif codes of the type shown above that cover all features of my cameras?
or
How can I derive this information?

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  • \$\begingroup\$ I would highly suggest parsing exiftool -json output or using the Image::Exiftool or exiv2 libraries directly, any of which will let you access things by name, rather than just raiding them for a list of magic numbers. \$\endgroup\$
    – hobbs
    May 25, 2023 at 15:22
  • \$\begingroup\$ @hobbs Thanks - I'll see if I can get Irfanview to accept names other than thos it names :-). eg $H is image pixel height. The magic numbers that I use are decimal addresses that I have garnered from various sources. \$\endgroup\$ May 27, 2023 at 11:42

2 Answers 2

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You can find the codes in the CIPA Exif v2.3 standard.

Sony tags are also listed in exiftool's documentation.

Exiv2 tool's documentation also list tags.

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    \$\begingroup\$ Thanks - those helped. Still not a complete fix. Some of the tags are in a form that I do not know how to translate into EXIF loctions. More anon, probbly. I will plaay. \$\endgroup\$ May 25, 2023 at 11:03
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Most of your data isn't Sony specific. The size (width/height/megapixel) is part of the JPEG data (not even the EXIF).

JPEG quality as defined by Sony (Extra Fine/Fine/Standard) is a combination of JPEG quality and possibly chroma subsampling, that are also part of the JPEG data.

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    \$\begingroup\$ The quality is more likely part of the Sony MakerNotes \$\endgroup\$
    – StarGeek
    May 25, 2023 at 1:14

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