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Harmer Wynne Optical Design. The integral three element corrector eliminates coma and astigmatism while providing small rms spot sizes (4 to 9 micron diameter, or 2 to 4.5 micron radius) over a 52 mm diameter fov. Lowne has deduced the following for the radial distortion :
12.5″ Imaging Harmer Wynne AG Optical from agoptical.com
The integral three element corrector eliminates coma and astigmatism while providing small rms spot sizes (4 to 9 micron diameter, or 2 to 4.5 micron radius) over a 52 mm diameter fov. The optical design (wynne 1982) is a schmidt camera without a collimator in the diverging beam from the cassegrain focus (fig. Optical miscellany telecentric, low distortion 2.
12.5″ Imaging Harmer Wynne AG Optical
From the radial distortion value quoted in the optical design (harmer, and wynne 1976) c.m. The other secondary is a hyperboloid, which gives a conventional f/15 cassegrain focus. They are fantastic for astrophotography, s.s.a., and supernovae searches. Optical miscellany telecentric, low distortion 2.
