Focal ratio and capture length for planetary imaging

[JamesF]

I've been saying I'll do this for a while and now I've finally put together pretty much everything I think I know about focal ratios and capture lengths for planetary imaging:

Focal Ratio and Capture Length for Planetary Imaging | www.tanstaafl.co.uk

I hope it will be useful to people starting out with planetary imaging.

(Constructive criticism appreciated...

James

[Merlin66]

Well written, good explanatory text.

I agree with your assessment; no gain above f40!

[Russe]

Yay! Was waiting for that!

[JamesF]

Well, it's reassuring that it made sense to some people

James