Seidel aberrations
Seidel aberrations
[′zīd·əl ‚ab·ə‚rā·shənz] (optics)
The five types of aberration of monochromatic light deduced from the Seidel theory, namely, spherical aberration, coma, astigmatism, curvature of field, and distortion.
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In addition to calculations for Seidel aberrations, MODAS offers a thorough mathematical treatment of a variety of optical characteristics--some of them aberrations, others being merely informative, and both sometimes switching roles depending on the design goals.
Features enable users to load and save their own designs, calculate chromatic and seidel aberrations, identify limiting aperture and field stops, and work in standard and custom CCD formats.
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