Quote:
Originally Posted by Bassnut
FINALLY. Sharp as, great detail and colour, guiding good, slight elongation bottom left and right bottom, no biggy, camera square on?. Odd fringing on bright stars (Cats paw only)?.
All in all great start Mike, looks very promising.
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I know how hard it must be for you to say even semi nice things about a 2.6deg diagonal field of view (@1.6"/pix)...so thanks mate
As you have noted the star images in the corners could be a little better and it varies a little between images (some flex?). I agree some image plain un-squareness is happening there but after the ASA disaster I positively love these stars
...hopefully I will be able to tweek the collimation a tad more but accurately collimating a fast corrected Newt 100% is like balancing two ball bearings on top of each other
..at this stage I am very happy with the look of the frames
The circles around the bright stars in the Cats Paw Ha shot seem to be hallmarks of this design of fast corrected Newt
a function of the corrector - filter - CCD window etc as per I've seen in other ASA et al OTA's...just one of those things
Mike