Hi!
I've been playing a bit with the full field focus option, partly to aviod when the focus module fails to find a star to focus on or rather misidentifies some dust for a star after a meridian flip or similar. However, I cannot make it work.
It looks like it is working and settles for a solution, after some 7-10 iterations. I use 3 sec exposures, with a Canon 1000D camera. However, it settles for a position that is quite different from what I get if I focus on a single star. And the setting it settles on is definitely not in focus, upon visual inspection.
I don't know what to supply in terms of logs or data here. I use polynomial, gradient, 1 % tolerance for both full field and one-star subframe focusing.
And on the side, then - how to avoid misdentification of star, or non-identification? I do not mean "failed to find stars", but at times it just focuses on what looks like empty sky....
Best,
Magnus
I've been playing a bit with the full field focus option, partly to aviod when the focus module fails to find a star to focus on or rather misidentifies some dust for a star after a meridian flip or similar. However, I cannot make it work.
It looks like it is working and settles for a solution, after some 7-10 iterations. I use 3 sec exposures, with a Canon 1000D camera. However, it settles for a position that is quite different from what I get if I focus on a single star. And the setting it settles on is definitely not in focus, upon visual inspection.
I don't know what to supply in terms of logs or data here. I use polynomial, gradient, 1 % tolerance for both full field and one-star subframe focusing.
And on the side, then - how to avoid misdentification of star, or non-identification? I do not mean "failed to find stars", but at times it just focuses on what looks like empty sky....
Best,
Magnus