Reference Manual

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Lens cast may occur if using the camera back with wide- angle
lenses e.g. Horseman Digiflex II, Hasselblad Flexbody or
Hasselblad 905SWC or on other large format cameras with
different tilt or swing settings. On a medium format camera lens
cast is very rare if using fixed lenses from 60 mm to 120 mm.
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Lens cast occurs as a result of the angle at which the CCD is
exposed to light. If the CCD is exposed to light coming from a
very sharp angle e.g. wide-angle or extreme degrees of tilting
you may experience lens cast.
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Depending on the light conditions and photographic setup, lens
cast will typically appear as a green cast in one corner of the
image that changes into a magenta cast in the opposite corner
of the image. It’s often visible on neutral grey backgrounds.
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If working with large format cameras with tilt and swing, you
would have to make a new calibration file if you change the
tilt and swing position. Phase One provides a solution in the
Capture one software that helps you get rid of the lens cast. We
call it: Lens Cast Calibration (LCC). By holding an opal white