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Ushio Dictionary Terms
pincushion distortion
An aberration of a lens system caused by an increase in lens focal length as the field angle increases. The amount of distortion normally increases as the cube of the image height.
Seidel aberrations
Seidel aberrations refer to a set of monochromatic aberrations in optical systems, named after the German mathematician and...
curvilinear distortion
A lens aberration in which the focal length varies radially outward from the center of the field. It has the effect of...
(3 results found)
May 2024
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