Quote:
Originally Posted by gregbradley
Petsvals as I understand them generally are not good for visual.
Greg.
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In terms of planetary viewing the NP's are only marginally behind the Tak doublets and triplets and the NP is designed to be easy to use for visual.
The most noticeable difference between my NP101is and FC100d is depth of focus due to the focal ratio's and the FC is a little more contrasty I think (need to get them side by side on Jupiter again).
An NP127 is a lot pricier than a TS triplet though.
Here's an interesting review:
http://doctordreviews.com/4inch-shootout.html