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Originally Posted by asimov
If you wanted a crayford style focuser, rather than a rack & pinion it'll cost you approx an extra $100. In my opinion well worth it but Rack&pinions work ok too.
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To my mind, this starts defeating the purpose of a good max-bang-for-buck budget scope. There are many upgrades things you could think: Crayford: another $100-$150; right angle finder: $100; telrad with dew shield: $100; cupholders: $15.95 etc etc. For best value, I'd say stick with the basics: 3 good EPs, Cheshire and maybe a barlow.
Also with the Crayfords you're asking for trouble! Lee does not get any 8" Dobs in with Crayfords on them. If he's willing to do an upgrade he will have to fit it himself. He always seems very busy, so it'll probably be done in a hurry. (Fitting involves drilling new mount holes in the OTA, making sure they're properly aligned, making sure you don't get metal shavings on your primary or secondary mirrors...) If you don't get the upgrade, you will need to buy it separately, which will cost you more. Also, you're likely to get one that's too big for your scope. And if not, then it will not fit any bigger scopes you might buy in future.
