Re: [darktable-user] Are there Ubuntu-19.10-Users with manual added lenses?

Wed, 11 Dec 2019 21:38:19 -0800 

On Fri, Dec 6, 2019, at 16:23, Аl Воgnеr wrote:

> My lens-configuration is based on this post:
> https://github.com/lensfun/lensfun/issues/895

I cleaned up the profile from that upload, see attachment. If you can test it 
and report, I'll add it to the database.

(There are some specific little things with fixed-lens profiles that are needed 
to work right in darktable; the one that's not obvious from observation of 
examples is that the mount name should start with lowercase.)

-- 
jys
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<lensdatabase>

    <camera>
        <maker>RICOH IMAGING COMPANY, LTD.</maker>
        <model>RICOH GR III</model>
        <mount>ricohGRIII</mount>
        <cropfactor>1.5</cropfactor>
    </camera>

    <lens>
        <maker>RICOH IMAGING COMPANY, LTD.</maker>
        <model>Ricoh GR III &amp; compatibles</model>
        <model lang="en">fixed lens</model>
        <model lang="de">festes Objektiv</model>
        <mount>ricohGRIII</mount>
        <cropfactor>1.5</cropfactor>
        <calibration>
           <distortion model="ptlens" focal="18.3" a="0.013" b="-0.035" c="0.018" />
           <tca model="poly3" focal="18.3" vr="1.0002833" vb="0.9999384" />
           <vignetting model="pa" focal="18.3" aperture="2.8" distance="10" k1="-1.3802520" k2="0.8435439" k3="-0.2049726" />
           <vignetting model="pa" focal="18.3" aperture="2.8" distance="1000" k1="-1.3802520" k2="0.8435439" k3="-0.2049726" />
           <vignetting model="pa" focal="18.3" aperture="3.2" distance="10" k1="-1.3957299" k2="0.9499705" k3="-0.2752275" />
           <vignetting model="pa" focal="18.3" aperture="3.2" distance="1000" k1="-1.3957299" k2="0.9499705" k3="-0.2752275" />
           <vignetting model="pa" focal="18.3" aperture="3.5" distance="10" k1="-1.3929666" k2="0.9374711" k3="-0.2586066" />
           <vignetting model="pa" focal="18.3" aperture="3.5" distance="1000" k1="-1.3929666" k2="0.9374711" k3="-0.2586066" />
           <vignetting model="pa" focal="18.3" aperture="4.0" distance="10" k1="-1.3716307" k2="0.8868999" k3="-0.2285188" />
           <vignetting model="pa" focal="18.3" aperture="4.0" distance="1000" k1="-1.3716307" k2="0.8868999" k3="-0.2285188" />
           <vignetting model="pa" focal="18.3" aperture="5.0" distance="10" k1="-1.3778934" k2="0.8793616" k3="-0.2177887" />
           <vignetting model="pa" focal="18.3" aperture="5.0" distance="1000" k1="-1.3778934" k2="0.8793616" k3="-0.2177887" />
           <vignetting model="pa" focal="18.3" aperture="5.6" distance="10" k1="-1.3668395" k2="0.8557737" k3="-0.2031980" />
           <vignetting model="pa" focal="18.3" aperture="5.6" distance="1000" k1="-1.3668395" k2="0.8557737" k3="-0.2031980" />
           <vignetting model="pa" focal="18.3" aperture="6.3" distance="10" k1="-1.3629146" k2="0.8501453" k3="-0.2003824" />
           <vignetting model="pa" focal="18.3" aperture="6.3" distance="1000" k1="-1.3629146" k2="0.8501453" k3="-0.2003824" />
           <vignetting model="pa" focal="18.3" aperture="7.1" distance="10" k1="-1.3573667" k2="0.8416084" k3="-0.1946607" />
           <vignetting model="pa" focal="18.3" aperture="7.1" distance="1000" k1="-1.3573667" k2="0.8416084" k3="-0.1946607" />
           <vignetting model="pa" focal="18.3" aperture="8.0" distance="10" k1="-1.3476270" k2="0.8155343" k3="-0.1797730" />
           <vignetting model="pa" focal="18.3" aperture="8.0" distance="1000" k1="-1.3476270" k2="0.8155343" k3="-0.1797730" />
           <vignetting model="pa" focal="18.3" aperture="9.0" distance="10" k1="-1.3441417" k2="0.8138368" k3="-0.1826893" />
           <vignetting model="pa" focal="18.3" aperture="9.0" distance="1000" k1="-1.3441417" k2="0.8138368" k3="-0.1826893" />
           <vignetting model="pa" focal="18.3" aperture="10.0" distance="10" k1="-1.3452665" k2="0.8206792" k3="-0.1836273" />
           <vignetting model="pa" focal="18.3" aperture="10.0" distance="1000" k1="-1.3452665" k2="0.8206792" k3="-0.1836273" />
           <vignetting model="pa" focal="18.3" aperture="11.0" distance="10" k1="-1.3275226" k2="0.7767254" k3="-0.1582416" />
           <vignetting model="pa" focal="18.3" aperture="11.0" distance="1000" k1="-1.3275226" k2="0.7767254" k3="-0.1582416" />
           <vignetting model="pa" focal="18.3" aperture="13.0" distance="10" k1="-1.3249310" k2="0.7675530" k3="-0.1525808" />
           <vignetting model="pa" focal="18.3" aperture="13.0" distance="1000" k1="-1.3249310" k2="0.7675530" k3="-0.1525808" />
           <vignetting model="pa" focal="18.3" aperture="14.0" distance="10" k1="-1.3461355" k2="0.7992332" k3="-0.1666381" />
           <vignetting model="pa" focal="18.3" aperture="14.0" distance="1000" k1="-1.3461355" k2="0.7992332" k3="-0.1666381" />
           <vignetting model="pa" focal="18.3" aperture="16.0" distance="10" k1="-1.3150808" k2="0.7466026" k3="-0.1380186" />
           <vignetting model="pa" focal="18.3" aperture="16.0" distance="1000" k1="-1.3150808" k2="0.7466026" k3="-0.1380186" />
        </calibration>
    </lens>

</lensdatabase>

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