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Originally Posted by ausastronomer
Stu,
If you liked the 5" APO over the 18" Obsession 1 of 2 conditions must exist 
1) the Obsession has a pretty average mirror in it.
2) you have far different observing preferences to me
The visible detail and resolving power of a 5" telescope is not even in the ball park with an 18" telescope. Yup it will give nicer star images but thats about it.
CS-John B |
nicer star images, but less stars... I guess it comes down to what you want from a scope hey.
an aperture mask in between the vanes will give a nicer star image on the 18" but it kinda defeats the purpose of haveing 18 inches in the first place
if it were up to me I'd have both
