Quote:
Originally Posted by gregbradley
I would do a star test. Defocus a bright star visually and look at both sides of focus. As I said I have never seen that type of star pattern in any of my scopes. Closest was an 80mm triplet APO and the focuser was way out of centre with the lens.
Greg.
|
I'll definitely do a visual star test next time I set up.
However while taking focus exposures I did see a bright star on both sides of focus and it looked perfectly round at all focus positions.