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Originally Posted by vector101
thanks for the replies, i should i havent got the scope yet, i think what i was getting at with the SC telescopes was would the image quality be similar?
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Typically, yes. A well set up Newtonian will normally have bit more contrast because of the smaller central obstruction. But a good SCT like the C9.25 can be very good indeed. There are two main practical differences afaik.
One is the size. I think this is the main reason people buy SCTs. They are more compact so they are easier on the mounts and tripods. Also you can get them fork mounted for comfortable viewing and still have a reasonably portable setup. OTOH a 10 or 12" Newt on a fork mount is going to be a huge beast of a thing.
The other important diff is the limited true field of view of SCTs, because of the large focal ratio.