why is not the field (sofware) not available custom field?

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mantras
Posts: 262
Joined: 24 Dec 12 8:36

why is not the field (sofware) not available custom field?

Post by mantras » 07 Aug 21 18:27

Hi
i'm tring to add a new custom field with field name software , software used to edit the image

in the thumbnails i have found it %exif:Software{encode=html}

i need it to find very quickly image edited with different software

is there a way to have a custom field %exif:Software ?
thanks
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Hert
Posts: 6970
Joined: 13 Sep 03 7:24

Re: why is not the field (sofware) not available custom field?

Post by Hert » 08 Aug 21 12:10

in the thumbnails i have found it %exif:Software{encode=html}
As recommended to you before: use XMP properties instead of Exif properties where possible!

So use %xmp:tiff:software

To add it as a Custom Field:
sOFTWARE.png
sOFTWARE.png (336.92 KiB) Viewed 420 times
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mantras
Posts: 262
Joined: 24 Dec 12 8:36

Re: why is not the field (sofware) not available custom field?

Post by mantras » 08 Aug 21 15:08

Hert wrote:
08 Aug 21 12:10
in the thumbnails i have found it %exif:Software{encode=html}
As recommended to you before: use XMP properties instead of Exif properties where possible!

So use %xmp:tiff:software

To add it as a Custom Field:
Hi Hert
yes i get it , i use always Xmp properties
but in this case software is under tiff , it's a file format (like jpg or psd ) isn't it ?
thanks
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Hert
Posts: 6970
Joined: 13 Sep 03 7:24

Re: why is not the field (sofware) not available custom field?

Post by Hert » 08 Aug 21 16:26

Tiff is a file format but also a tag system (the t stands for Tagged). The software tag is defined in XMP standard as part of the tiff schema.
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mantras
Posts: 262
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Re: why is not the field (sofware) not available custom field?

Post by mantras » 08 Aug 21 16:35

Hert wrote:
08 Aug 21 16:26
Tiff is a file format but also a tag system (the t stands for Tagged). The software tag is defined in XMP standard as part of the tiff schema.
hi Hert
thanks
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Larry56
Posts: 430
Joined: 05 Jul 10 6:57

Re: why is not the field (sofware) not available custom field?

Post by Larry56 » 12 Aug 21 1:38

Hert,
I'm curious why use xmp vs exif?

In the past I've used exif which was a pain in the neck to edit so I stopped doing it. xmp seems much easier with not having to use special software to edit exif. As I recall some programs such as Capture One(?) wrote their name into exif and some don't (ON1).

I have found one oddity perhaps you can explain. I have some photos taken with Sony A7iii and the tiff:software custom field I just added shows Software: ILCE-7M3 v3.10. Because Sony writes to that xmp field thinking it's software too?

edit: Just noticed that Sony RX100 does the same thing.

Hert
Posts: 6970
Joined: 13 Sep 03 7:24

Re: why is not the field (sofware) not available custom field?

Post by Hert » 13 Aug 21 8:20

Larry56 wrote:
12 Aug 21 1:38
I'm curious why use xmp vs exif?
Performance. PSU is XMP driven.
%exif is read from the physical file (meaning the file needs to be opened, the metadata read before the value can be displayed)
%xmp is read from the database
I have found one oddity perhaps you can explain. I have some photos taken with Sony A7iii and the tiff:software custom field I just added shows Software: ILCE-7M3 v3.10. Because Sony writes to that xmp field thinking it's software too?

edit: Just noticed that Sony RX100 does the same thing.
The camera write its software version (firmware is the software of a camera) in the software tag. That is perfectly fine.
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Larry56
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Joined: 05 Jul 10 6:57

Re: why is not the field (sofware) not available custom field?

Post by Larry56 » 13 Aug 21 19:43

Thank you for that information.

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