Am Fri, 3 Jan 2020 23:13:08 +0100
schrieb Аl Воgnеr <darktable...@corr.eu.org>:

I answer your question by pasting from the archive, the mail didn't
reach me until now. mabye it will arrive later as with other mails:

> what does "exiv2 doesn't recognize the lens" mean?. What is
> the output of:

exiv2 -pv --grep lens/i image.jpg

This from another experimental pc using exiv2 0.27.2:

0x003f PentaxDng    LensType                    Byte        4  8 62 0 0
0x0207 PentaxDng    LensInfo                    Undefined 128  0 168
224 80 0 62 2 30 3 0 6 0 0 0 0 0 40 86 44 0 197 131 155 32 113 104 104
44 2 178 107 251 255 255 255 62 33 165 132 150 32 151 101 0 0 0 0 0 207
212 62 120 0 164 0 16 127 12 0 185 1 0 0 0 2 160 6 20 192 31 223 213
209 18 125 64 0 0 0 3 136 136 152 234 41 38 136 101 58 96 246 0 0 0 144
112 0 12 231 23 195 30 106 88 51 11 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0

> Did you add an entry for your lens in .exiv2 as described in the man
page of exiv2?

No, because this doesn't work with the exiv2-version of Ubuntu 19.10.
Eoan uses evix2 0.25

Al



> From /var/lib/lensfun-updates/version_2/slr-pentax.xml
> 
>     <lens>
>         <!-- This lens is optically identical to the Tamron SP 24-70mm
>     f/2.8 Di VC USD. -->
>         <maker>Pentax</maker>
>         <model>HD Pentax-D FA 24-70mm f/2.8 ED SDM WR</model>
>         <mount>Pentax KAF3</mount>
>         <cropfactor>1</cropfactor>
>         <calibration>
> 
> I had this lens with Ubuntu 18.04 working already with a file in
> /.local/share/lensfun The old file doesn't work in Ubuntu 19.10
> anymore, I mean it is not recognized automatically. It works when I
> assign the lens manually. The lens is shown 2 times in darktable. (HD
> Pentax vs. HD PENTAX and f2.8 vs f/2.8. In earlier discussion I've
> been told, that this shouldn't matter. I am very unsure, if this is
> true with Ubuntu-versions, because I got some lenses working with
> 18.04 adding a 2nd name with things like "/", 
> 
> With a Ricoh fixed lens (GR III), it was said, that the "mount" has to
> begin with a lowercase letter, which isn't the case here.
> 
> 
> My version is at /.local/share/lensfun
> 
> <lensdatabase>
> 
>     <lens>
>         <maker>Pentax</maker>
>         <model>HD PENTAX-D FA 24-70mm F2.8 ED SDM WR</model>
>         <mount>Pentax KAF3</mount>
>         <cropfactor>1</cropfactor>
>         <calibration>
> 
> [MakerNotes]    0x0001 Lens Type                       :
> HD PENTAX-D FA 24-70mm F2.8 ED SDM WR
> 
> exiv2 doesn't recognize the lens with Ubuntu 19.10, but I do not
> understand while it worked already with 18.04
> 
> Al
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