Hello all, if is a lens profile for the canon ef 400mm f/5.6L
<lensdatabase>
<lens>
<maker>Canon</maker>
<model>EF400mm f/5.6L USM</model>
<mount>Canon EF</mount>
<cropfactor>1</cropfactor>
<type><aspect-ratio></type>
<calibration>
<distortion model="ptlens" focal="400" a="-0.03285"
b="0.08862" c="-0.04324" />
<tca model="poly3" focal="400" br="-0.0000002"
vr="0.9999279" bb="0.0000843" vb="0.9997741" />
<tca model="poly3" focal="400" br="-0.0000135"
vr="0.9999392" bb="-0.0000027" vb="0.9999551" />
<tca model="poly3" focal="400" br="-0.0000146"
vr="0.9999007" bb="-0.0000228" vb="0.9998644" />
<tca model="poly3" focal="400" br="-0.0000158"
vr="0.9999109" bb="0.0000188" vb="0.9998879" />
<tca model="poly3" focal="400" br="-0.0000627"
vr="0.9999415" bb="0.0000062" vb="0.9999506" />
<tca model="poly3" focal="400" br="0.0000162" vr="0.9999094"
bb="0.0000152" vb="0.9999237" />
<tca model="poly3" focal="400" br="0.0000177" vr="0.9998935"
bb="-0.0000159" vb="0.9999776" />
<tca model="poly3" focal="400" br="0.0000357" vr="0.9998774"
bb="0.0000047" vb="0.9999285" />
<tca model="poly3" focal="400" br="0.0000364" vr="0.9998785"
bb="0.0000200" vb="0.9999319" />
<vignetting model="pa" focal="400" aperture="5.6"
distance="10" k1="-0.3682" k2="0.2105" k3="-0.2322" />
<vignetting model="pa" focal="400" aperture="5.6"
distance="1000" k1="-0.3682" k2="0.2105" k3="-0.2322" />
<vignetting model="pa" focal="400" aperture="6.3"
distance="10" k1="-0.0089" k2="-0.2002" k3="0.0936" />
<vignetting model="pa" focal="400" aperture="6.3"
distance="1000" k1="-0.0089" k2="-0.2002" k3="0.0936" />
<vignetting model="pa" focal="400" aperture="10"
distance="10" k1="0.1539" k2="-0.2845" k3="0.1730" />
<vignetting model="pa" focal="400" aperture="10"
distance="1000" k1="0.1539" k2="-0.2845" k3="0.1730" />
<vignetting model="pa" focal="400" aperture="18"
distance="10" k1="0.3542" k2="-0.6154" k3="0.3720" />
<vignetting model="pa" focal="400" aperture="18"
distance="1000" k1="0.3542" k2="-0.6154" k3="0.3720" />
</calibration>
</lens>
</lensdatabase>
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