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The 8" and 10" show much the same objects BUT they will be brighter in the 10" so many people prefer it as a beginners scope. However, the 8" is an f6 and the 10" is an f5 which is much more fussy about collimation.
Not so long ago the 6" f8 was considered the beginners scope but now most people would say at least the 8". I think it is a great beginners scope because its a bit easier to set up and it leaves a natural upgrade to the 12" which delivers an extra magnitude of viewing over the 8".
Just some things to think about.......
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