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Antenox
super member
Reged: 10/10/08
Posts: 107
Loc: Los Angeles, CA
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Re: 80mm ED APO vs 127mm MCT vs 150mm SCT?
09/21/09 04:12 PM
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What effect would using a focal reducer have on the image quality?
Right now I'm thinking of a NexStar 6SE plus a separate CG-5 mount so I can double up and pair the OTA with the NexStar mount as a travel scope or with the CG-5 as an AP scope. But since my primary interest right now are DSOs, and wide field is necessary for those, I gotta know how a focal reducer would affect the picture.
Maybe further in the future I'll also invest in an 80mm triplet to make this question moot, but that's a ways away.
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Astrophotography/travel telescope (80-100mm APO or 5-6" SCT/MCT)
Ultra-wide angle eyepieces
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114mm SkyWatcher GreatStart Reflector
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