On samedi 20 mai 2017 13:22:22 CEST Romano Giannetti wrote:
> Hi all,
> 
>      I have a problem with DT 2.2.4 --- I have bought a new camera, and
> trying to see if I like it --- a Panasonic TZ100. The lens is not in the
> stock lensfun database yet, but I found the entry in the lensfun
> database --- reported below hoping it's correct. Now, I tried to put it
> in a file in ~/.local/share/lensfun/, the adding it directly to the main
> file in /usr/share/lensfun/compact-panasonic.xml, but no matter what I
> do, the lens is not shown in the list of available lenses.
> 
>      What am I doing wrong?
> 
> 
> Romano
> 
> 
> <lensdatabase version="2">
> 
>      <lens>
>          <maker>Leica</maker>
>          <model>DMC-TZ100 &amp; compatibles</model>
>          <model lang="en">fixed lens</model>
>          <model lang="de">festes Objektiv</model>
>          <mount>panasonicTZ100</mount>
>          <cropfactor>2.75</cropfactor>
>          <aspect-ratio>3:2</aspect-ratio>
>          <calibration>
>              <distortion model="ptlens" focal="9.1" a="0.00708902"
> b="-0.040959" c="-0.0636536"/>
>              <distortion model="ptlens" focal="11" a="0.0095907"
> b="-0.0535213" c="0.00920877"/>
>              <distortion model="ptlens" focal="14.6" a="0"
> b="-0.0124246" c="0"/>
>              <distortion model="ptlens" focal="18.2" a="0"
> b="-0.00155103" c="0"/>
>              <distortion model="ptlens" focal="23.7" a="0"
> b="0.00368039" c="0"/>
>              <distortion model="ptlens" focal="36.6" a="0"
> b="0.00140267" c="0"/>
>              <distortion model="ptlens" focal="54.8" a="0"
> b="0.00153697" c="0"/>
>              <distortion model="ptlens" focal="91" a="0"
> b="-0.000878659" c="0"/>
>              <tca model="poly3" focal="9.1" vr="1.0003000" vb="1.0002000"/>
>              <tca model="poly3" focal="11" vr="1.0005000" vb="1.0002000"/>
>              <tca model="poly3" focal="14.6" vr="1.0005000" vb="1.0000000"/>
> <tca model="poly3" focal="18.2" vr="1.0005000" vb="0.9999000"/> <tca
> model="poly3" focal="23.7" vr="1.0004000" vb="0.9999000"/> <tca
> model="poly3" focal="36.6" vr="1.0000000" vb="1.0000000"/> <tca
> model="poly3" focal="54.8" vr="0.9997000" vb="1.0000000"/> <tca
> model="poly3" focal="91" vr="0.9996000" vb="0.9995000"/> </calibration>
>      </lens>
> 
> </lensdatabase>
You did close and restart Darktable after the addition? It's possible the 
database is only read from file at start-up.

Remco

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