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I agree with Mark.
The good quality newt is hard to beat.
I still favour my Mak/Newt though, and I guess it is just what you want, and expect from a scope. The long focal length issue that someone raised in the Mak/Cass design can also work against you. Try using it for a slightly wide field view and it requires an excessively long eyepiece. Whereas with the MN design, you simply crank it up with a Powermate mate.
I do tend to disagree with Mark on cooldown. I have had a zillion Maks, OK, not a zilliuon, but a few. I have never had a problem with cooldown. BUT.... I do set up before having an evening graze, and by the time the dishes are done, the scope is ready. My gear is also stored in a workshop in the hanger, and is close to ambient.
I would agree that if you took your scope from the inside of the house, warm and dry, and out into the cool of night there maybe a problem, but wouldn't there also with any optical system, newt included. A little preparation is all that is required.
Gary
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