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For visual use the best planetary views on a bang per buck basis will be had with a well cooled Dob using high quality optics and some kind of tracking, e.g., a tracking platform. Note the two italicized phrases. I like refractors and own a small APO as well as a Dob but no matter how good apochromatic refractors are per inch of aperture, a good quality well cooled larger Newt will do better for visual use for the same money or less.
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