Is there much advantage if any in choosing a CC over an RC for spectroscopic work?
Spectroscopy: RC or Classical Cass?
Posted 11 January 2017 - 11:09 PM
Posted 04 February 2018 - 12:19 PM
I noticed this question now, a year later .
depends on which spectroscopy you want to do, all range or mainly H-alpha? I am not a specialist, but I do notice that in certain telescopes with correction lenses some scattering gave at wavelengths of <4000 angstom and for example at a broad spectrum and lower than 4000 A the line of the spectrum on the image fanned out (becomes wider). so I think it's best to have as low as possible 'glass' in the beam of light to the CCD-camera, or you must have very good coatings .
my 2 eurocents.
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