<lensdatabase version="1">

    <lens>

        <maker>Samyang</maker>

        <model>Samyang 8mm f/3.5 Fish-Eye CS</model>

        <model lang="de">Samyang 8mm f/3.5 Fischauge CS</model>

        <mount>Pentax KAF</mount>

        <mount>Canon EF</mount>

        <mount>Nikon F AI</mount>

        <mount>Fujifilm X</mount>

        <mount>Sony Alpha</mount>

        <mount>Sony E</mount>

        <mount>4/3 System</mount>

        <mount>Micro 4/3 System</mount>

        <mount>Samsung NX</mount>

        <cropfactor>1.534</cropfactor>

        <type>stereographic</type>

        <calibration>

                                         bb="-0.0002711" cb="0.0008531" vb="0.9998496" />

            <distortion model="ptlens" focal="8" a="0.04098" b="-0.15413" c="0.11977" />

        </calibration>

    </lens>

    <lens>

        <maker>Samyang</maker>

             added as an alias rather than a merged lens model name. -->

        <model>Samyang 14mm f/2.8 AE ED AS IF UMC</model>

        <mount>Pentax KAF</mount>

        <mount>Canon EF</mount>

        <mount>Nikon F AI</mount>

        <mount>Fujifilm X</mount>

        <mount>Sony Alpha</mount>

        <mount>Sony E</mount>

        <mount>4/3 System</mount>

        <mount>Micro 4/3 System</mount>

        <mount>Samsung NX</mount>

        <mount>Nikon CX</mount>

        <mount>Canon EF-M</mount>

        <cropfactor>1.0</cropfactor>

        <calibration>

            <distortion model="ptlens" focal="14" a="0.04015" b="-0.07043" c="-0.05466" />

            <tca model="poly3" focal="14" br="0.0000198" vr="0.9999690" bb="-0.0001334" vb="1.0003226" />

        </calibration>

    </lens>

    <lens>

        <maker>Samyang</maker>

             added as an alias rather than a merged lens model name. -->

        <model>Samyang 14mm f/2.8 AE ED AS IF UMC</model>

        <mount>Pentax KAF</mount>

        <mount>Canon EF</mount>

        <mount>Nikon F AI</mount>

        <mount>Fujifilm X</mount>

        <mount>Sony Alpha</mount>

        <mount>Sony E</mount>

        <mount>4/3 System</mount>

        <mount>Micro 4/3 System</mount>

        <mount>Samsung NX</mount>

        <mount>Nikon CX</mount>

        <mount>Canon EF-M</mount>

        <cropfactor>1.523</cropfactor>

        <calibration>

            <distortion model="ptlens" focal="14" a="0.01031" b="-0.02759" c="-0.0351" />

            <tca model="poly3" focal="14" br="0.0000642" vr="0.9999130" bb="-0.0001012" vb="1.0003675" />

            <vignetting model="pa" focal="14" aperture="2.8" distance="10" k1="-1.1454" k2="1.0122" k3="-0.4352" />

            <vignetting model="pa" focal="14" aperture="2.8" distance="1000" k1="-1.1454" k2="1.0122" k3="-0.4352" />

            <vignetting model="pa" focal="14" aperture="4" distance="10" k1="-0.2347" k2="-0.0941" k3="-0.0002" />

            <vignetting model="pa" focal="14" aperture="4" distance="1000" k1="-0.2347" k2="-0.0941" k3="-0.0002" />

            <vignetting model="pa" focal="14" aperture="5.6" distance="10" k1="-0.2615" k2="0.0072" k3="0.0062" />

            <vignetting model="pa" focal="14" aperture="5.6" distance="1000" k1="-0.2615" k2="0.0072" k3="0.0062" />

            <vignetting model="pa" focal="14" aperture="22" distance="10" k1="-0.2733" k2="0.0338" k3="-0.0093" />

            <vignetting model="pa" focal="14" aperture="22" distance="1000" k1="-0.2733" k2="0.0338" k3="-0.0093" />

        </calibration>

    </lens>

    <lens>

        <maker>Samyang</maker>

        <model>Samyang 500mm f/6.3 MC IF Mirror Lens</model>

        <model lang="de">Samyang 500mm f/6.3 MC IF Spiegelobjektiv</model>

        <mount>T2</mount>

        <focal value="500" />

        <aperture value="6.3" />

        <cropfactor>1.534</cropfactor>

        <calibration>

            <distortion model="poly3" focal="500" k1="0" />

            <tca model="linear" focal="500" kr="1" kb="1" />

            <vignetting model="pa" focal="500" aperture="6.3" distance="10" k1="-0.7756" k2="0.8291" k3="-0.3723" />

            <vignetting model="pa" focal="500" aperture="6.3" distance="1000" k1="-0.7756" k2="0.8291" k3="-0.3723" />

        </calibration>

    </lens>

    <lens>

        <maker>Samyang</maker>

        <model>Samyang 35mm f/1.4 AS UMC</model>

             brands, the 35/1.4 may have different characteristics. -->

        <mount>Nikon F AI</mount>

        <cropfactor>1</cropfactor>

        <calibration>

            <distortion model="ptlens" focal="35" a="0.00331" b="-0.0171" c="0.00274" />

        </calibration>

    </lens>

    <lens>

        <maker>Samyang</maker>

        <model>Samyang T-S 24mm f/3.5 ED AS UMC</model>

        <mount>Nikon F AI</mount>

        <mount>Canon EF</mount>

        <mount>Sony Alpha</mount>

        <mount>Sony E</mount>

        <mount>Pentax KAF</mount>

        <cropfactor>1</cropfactor>

        <calibration>

            <distortion model="ptlens" focal="24" a="-0.004" b="0.007" c="-0.02" />

        </calibration>

    </lens>

<lens>

    <maker>Samyang</maker>

    <model>Samyang 12mm f/2.8 Fish-Eye ED AS NCS</model>

    <model lang="de">Samyang 12mm f/2.8 Fischauge ED AS NCS</model>

    <mount>Nikon F AI</mount>

    <mount>Canon EF</mount>

    <mount>Sony E</mount>

    <cropfactor>1</cropfactor>

    <type>stereographic</type>

    <calibration>

        <distortion model="ptlens" focal="12" a="a=-0.000331804" b="-0.00911417" c="-0.044237" />

        <vignetting model="pa" focal="12" aperture="2.8" distance="10" k1="-0.90717" k2="0.58477" k3="-0.2198" />

        <vignetting model="pa" focal="12" aperture="2.8" distance="1000" k1="-0.90717" k2="0.58477" k3="-0.2198" />

        <vignetting model="pa" focal="12" aperture="4.0" distance="10" k1="-0.17101" k2="-0.54574" k3="0.3056" />

        <vignetting model="pa" focal="12" aperture="4.0" distance="1000" k1="-0.17101" k2="-0.54574" k3="0.3056" />

        <vignetting model="pa" focal="12" aperture="5.6" distance="10" k1="-0.1978" k2="-0.03729" k3="-0.11743" />

        <vignetting model="pa" focal="12" aperture="5.6" distance="1000" k1="-0.1978" k2="-0.03729" k3="-0.11743" />

        <vignetting model="pa" focal="12" aperture="8.0" distance="10" k1="-0.18295" k2="-0.09272" k3="0.03547" />

        <vignetting model="pa" focal="12" aperture="8.0" distance="1000" k1="-0.18295" k2="-0.09272" k3="0.03547" />

    </calibration>

</lens>

    <lens>

        <maker>Samyang</maker>

        <model>Samyang 35mm T1.5 Cine Lens</model>

        <mount>Canon EF</mount>

        <cropfactor>1.620</cropfactor>

        <calibration>

            <distortion model="poly3" focal="35" k1="-0.00449" />

        </calibration>

    </lens>

</lensdatabase>