<lensdatabase version="1">

    <lens>
        <maker>Tamron</maker>
        <model>Tamron 18-200mm f/3.5-6.3 Di III VC</model>
        <mount>Sony E</mount>
        <mount>Canon EF-M</mount>
        <cropfactor>1.534</cropfactor>
        <calibration>
            <!-- Taken with Sony A6000 -->
            <distortion model="ptlens" focal="18" a="0.02016" b="-0.04597" c="-0.03359" />
            <distortion model="ptlens" focal="20.9" a="0.03108" b="-0.08646" c="0.04744" />
            <distortion model="ptlens" focal="22.6" a="0.02567" b="-0.06728" c="0.03734" />
            <distortion model="ptlens" focal="34.1" a="0.00474" b="-0.00952" c="0.00794" />
            <distortion model="ptlens" focal="69.5" a="0" b="0.00596" c="0" />
            <distortion model="ptlens" focal="200" a="0" b="0.00674" c="0" />
            <tca model="poly3" focal="18" vr="1.0004" vb="1.0002" />
            <tca model="poly3" focal="20.9" vr="1.0003" vb="1.0002" />
            <tca model="poly3" focal="22.6" vr="1.0003" vb="1.0001" />
            <tca model="poly3" focal="34.1" vr="1.0003" vb="1.0001" />
            <tca model="poly3" focal="69.5" vr="0.9999" vb="1.0004" />
            <tca model="poly3" focal="200" vr="0.9991" vb="0.9997" />
        </calibration>
    </lens>

</lensdatabase>