|optical design - schmax||max reason|
This page describes a flat-field photo-visual schmidt-cassegrain optical system invented by Max Reason.
This optical configuration has 2 aspheric surfaces, a schmidt-corrector and a hyperbolic secondary mirror. All other surfaces are spherical. The original 9" f/6 design was designed to be a compact, high-resolution telephoto lens for 6x6cm and 6x7cm SLR camera bodies. The field corrector lenses are far enough from the focal surface to clear the swing-up SLR mirrors in these cameras.
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----- image quality -----
spot image wavefront-interference image
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|copyright 1988-2001 - all rights reserved - patents pending|