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In reading the article "Get the Right Telescope" by Rod Mollise in April issue of Aus Sky and Telescope (page 44), I ran across some comparative statements related to newts (ie Dobs) and SCTs:
SCTs: Fairly high cost per inch of aperture and longest cool down time of any design. In their favour most are sold on motorised mounts
Newt (dob): Lowest cost per inch of aperture,and obviously Dobs don't require mounts like the SCTs do.
The article is worth a read if your in the market.
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