Thread: Hard decision
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Old 14-08-2019, 08:34 PM
rrussell1962
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rrussell1962 is offline
 
Join Date: May 2014
Location: Brisbane
Posts: 410
Not a bad choice to have. I have an 18" F4.5 Obsession classic. At the size you are looking at I would be looking at the quality of the mirror and equally important at the way the scope is built. How easy is it to transport? How well does it hold collimation when you move it from zenith to say 15 degrees? Both will provide a lifetime of views. Does one have a ServoCat? If not if you want to add one which will be easier? Which one requires less baffling of the UTA to cut down on stray light? A big Dob is a joy but there is a lot to think about - much of which is not obvious until you have one. Happy to discuss more by PM.
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