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Refractors are light and compact, have short focal lengths but can have fairly fast focal ratios, good for astro photo's but with a smaller image scale. At the other end MC's and RC's are compact, have very long focal lengths but much higher focal ratio's, long exposures needed.
The newt is the in-betweener, reasonable focal length, great light gathering and very fast focal ratio's.
Yes the big drawback of the newt is it's physical size, but the best way to handle that is to put it on a pier in a sheltered location, ideally an obs. I have a 10" f4.8 on a HEQ5, but mounted on a pier next to my shed. I have other scopes but I love the way the 10" newt gets fast results with short subs, all I need now is a cooled astro cam.
Last edited by doppler; 11-05-2018 at 09:55 AM.
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