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Showing results for tags 'eye piece projection'.
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Hi, I want to place a CCD camera where the secondary mirror is, remove the sec. mirror completely. It,s a home made F5 14 inch. Do I have to use a coma corrector or/and a field flattener? Can I use a Barlow with a field flattener or coma corrector, can I use eye piece projection with a field flattener or coma corrector? Many thanks, Markus