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celestron omni 120mm refractor

Started by dumbbell, 10/05/2008 01:08PM
Posted 10/05/2008 01:08PM Opening Post
hello does anyone own a celestron omni 120mm
refractor? what do they think of it? tony
Posted 10/09/2008 11:02PM | Edited 10/09/2008 11:07PM #1
A friend of mine has the Celestron 120mm OMNI, which he bought as his first scope in January this year. Sorry to say he is not happy with it. Too much CA and the CG-4 is far too underdimensioned for that heavy and front heavy OTA. When balancing the OTA the eyepiece often gets in an impossible low position for comfortable observing. I agree with him, if I was to buy an OMNI refractor kit I would go for the lighter 102mm instead.
I have observed with the 120mm OTA on my CG-5 and then it it works qute fine and I find the optics as good as you can expect from an 120mm f/8,3 ackromat and the CA was not an issue to me. Saturn was nice with cassini division at ansae and some bandings on the globe. Little green hazy but nothing serius. Stars came to pinpoint images and and snapfocus. But bare in mind I only used it twice! My friend bought a 72mm WO and a 6" f/5 GSO Newtonian and he is now a happy observer.
So i think the optics is fine in the 120mm OTA but the "120mm OMNI Kit" is a nightmare to use.

-Magnus