NigeB

On 30/09/2018 at 09:55, Laurin Dave said:

Nice image Nigel, looks like you've got your star elongation sorted. What was the issue?   Also wondered whether using your scope at native f7 might speed up image capture/ reduce noise.

Dave

 

Hi Dave, Good grief, I never spotted your comment here - over 4 years ago😳 sorry about that... just discovered it after updating my gallery this morning. Thanks - I never found the definitive issue: I suspect it just came down to polar alignment and the sensitivity to that at higher declinations. I've just re-mounted my Tak after a long period of using the 14", and I'm going to be trying to stick to f/7 and see how things turn out - the capture time and noise issue should be significantly better as you say, and for this site there should be no issues with under sampling. If the clouds clear I may post something in that configuration...

Thanks

Nigel