<lensdatabase>

    <camera>
        <maker>Panasonic</maker>
        <model>DMC-G1</model>
        <mount>Micro 4/3 System</mount>
        <cropfactor>2.0</cropfactor>
    </camera>

    <camera>
        <maker>Panasonic</maker>
        <model>DMC-GF1</model>
        <mount>Micro 4/3 System</mount>
        <cropfactor>2.0</cropfactor>
    </camera>

    <camera>
        <maker>Panasonic</maker>
        <model>DMC-GH1</model>
        <mount>Micro 4/3 System</mount>
        <cropfactor>2.0</cropfactor>
    </camera>

    <camera>
        <maker>Panasonic</maker>
        <model>DMC-GX1</model>
        <mount>Micro 4/3 System</mount>
        <cropfactor>2.0</cropfactor>
    </camera>

    <camera>
        <maker>Panasonic</maker>
        <model>DMC-G2</model>
        <mount>Micro 4/3 System</mount>
        <cropfactor>2.0</cropfactor>
    </camera>

    <camera>
        <maker>Panasonic</maker>
        <model>DMC-GF2</model>
        <mount>Micro 4/3 System</mount>
        <cropfactor>2.0</cropfactor>
    </camera>

    <camera>
        <maker>Panasonic</maker>
        <model>DMC-GH2</model>
        <mount>Micro 4/3 System</mount>
        <cropfactor>2.0</cropfactor>
    </camera>

    <camera>
        <maker>Panasonic</maker>
        <model>DMC-G3</model>
        <mount>Micro 4/3 System</mount>
        <cropfactor>2.0</cropfactor>
    </camera>

    <camera>
        <maker>Panasonic</maker>
        <model>DMC-GF3</model>
        <mount>Micro 4/3 System</mount>
        <cropfactor>2.0</cropfactor>
    </camera>

    <camera>
        <maker>Panasonic</maker>
        <model>DMC-G10</model>
        <mount>Micro 4/3 System</mount>
        <cropfactor>2.0</cropfactor>
    </camera>

    <lens>
        <maker>Panasonic</maker>
        <model>LUMIX G 20/F1.7</model>
        <mount>Micro 4/3 System</mount>
        <cropfactor>2.0</cropfactor>
        <calibration>
            <distortion model="ptlens" focal="20" a="0.00789316" b="-0.04009" c="0.00949904" />
            <!-- Alternative model from http://xraynaudphotos.free.fr/lensfun.php -->
            <!-- distortion model="ptlens" focal="20" a="-0.0160" b="-0.0470" c="-0.0140" -->
            <vignetting model="pa" focal="20" aperture="1.7" distance="100" k1="-1.18453" k2="1.18468" k3="-0.77676" />
            <vignetting model="pa" focal="20" aperture="2.0" distance="100" k1="-0.50428" k2="-0.46084" k3="0.38333" />
            <vignetting model="pa" focal="20" aperture="2.5" distance="100" k1="-0.02049" k2="-1.00156" k3="0.54046" />
            <vignetting model="pa" focal="20" aperture="3.2" distance="100" k1="-0.06459" k2="-0.60501" k3="0.27001" />
            <vignetting model="pa" focal="20" aperture="4.0" distance="100" k1="-0.09156" k2="-0.56989" k3="0.38586" />
            <vignetting model="pa" focal="20" aperture="5.0" distance="100" k1="-0.13452" k2="-0.46186" k3="0.32235" />
            <tca model="poly3" focal="20" br="-0.0001356" vr="1.0004113" bb="-0.0000369" vb="1.0002529" />
        </calibration>
    </lens>

    <lens>
        <maker>Panasonic</maker>
        <model>LUMIX G VARIO 14-42/F3.5-5.6</model>
        <mount>Micro 4/3 System</mount>
        <cropfactor>2.0</cropfactor>
        <calibration>
            <distortion model="ptlens" focal="14" a="0.040" b="-0.121" c="0.038" />
            <distortion model="ptlens" focal="20" a="0.020" b="-0.060" c="0.035" />
            <distortion model="ptlens" focal="29" a="0.013" b="-0.029" c="0.016" />
            <distortion model="ptlens" focal="36" a="0.015" b="-0.034" c="0.032" />
            <distortion model="ptlens" focal="42" a="0.003" b="-0.001" c="0.002" />
        </calibration>
    </lens>

    <lens>
        <maker>Panasonic</maker>
        <model>LUMIX G VARIO 45-200mm F4.0-5.6</model>
        <mount>Micro 4/3 System</mount>
        <cropfactor>2.0</cropfactor>
        <calibration>
            <distortion model="ptlens" focal="45" a="-0.001" b="0.003" c="-0.03" />
            <distortion model="ptlens" focal="56" a="0.003" b="-0.006" c="0.08" />
            <distortion model="ptlens" focal="61" a="0.004" b="-0.003" c="0.04" />
            <distortion model="ptlens" focal="103" a="-0.001" b="0.007" c="0.002" />
            <distortion model="ptlens" focal="144" a="-0.005" b="0.023" c="-0.015" />
            <distortion model="ptlens" focal="180" a="-0.003" b="0.020" c="-0.017" />
            <distortion model="ptlens" focal="200" a="0.004" b="-0.007" c="0.012" />
        </calibration>
    </lens>

</lensdatabase>
