Quote:
Originally Posted by lazjen
I would assume flexing would be caused by problems with weight at these "various angles"? Wouldn't I also see the problem in Dec as well then (which I do not seem to have)?
And how realistic is it to have flexure in a RC10? Or a moonlite focuser?
I should clarify, that except for removing the 0.67 reducer (so it was at approx 1340mm), the set up was the same that I was using for taking 30 min subs before. I wanted to refine the PA further for the change to the 2000 mm, which I thought would be more sensitive to any inaccuracy I had.
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Fair enough. I might have gotten confused what the issue is in here. From the screenshots you have attached I saw a drift in Dec (red line) indicating either inaccurate alignment or flex under gravity (could be mirror, tubes, focuser...).
At 2000mm any flexture (something not being 100% rigid) will be more noticeable.
Just throwing some ideas into the basket....