Quote:
Originally Posted by Andy01
30 Sec exposures?
Amazing, what's the f ratio 2.8 or similar?
Are the stars round in all four corners?
Looking forward to seeing what you come up with.
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So I did have a close look at it today - one side appears to have some slight star elongation on the edge, so I will need to look at it. Might need some collimation, or see if I can adjust the tilt of the camera somehow.