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Brand:
Celestron
Located in:
Binoculars & Telescopes, Telescopes and Accessories, Dobsonians
Celestron FirstScope Telescope, 76mm (3") Dobsonian Style Reflector
[7 of 10 customers found this review helpful]
Great finder, but not for planitary
By astroyogi
from southern NH on 11/8/2009
from southern NH on 11/8/2009
Pros:
Compact, Strong Construction
Cons:
Poor Lens Quality
Best Uses:
Astronomy, Travel
Describe Yourself:
Avid Adventurer
Bottom Line:
No, I would not recommend this to a friend
Comments about Celestron Celestron FirstScope Telescope, 76mm (3") Dobsonian Style Reflector:
Mirror not a very good parabola. Even with a 20mm eyepiece, going in and out of focus shows spherical abberation, under corrected, 1/2 wave maybe? Saw no features on jupiter. Also a large turned down edge on last 0.4mm of outside, it can be seen without any eyepiece. I am using it as a finder of a 17.5" dob, works find at 17x. I will mask outter edge, down from F/4.5 to F/5.0. Rest of scope worked fine, but the two suplied Huygens type eyepieces are usless on F4.5 scopes, I use a 20mm Erfle.