Re: [ccd-newastro] Increasing FL for planets
- I believe the rule-of-thumb for lunar/planetary CCD imaging is 0.5 arc-secs
per pixel resolution. EP projection will provide a more dramatic increase
in effective FL than inserting a Barlow. Use whichever one gives you the
--- john_strachan <john_strachan@...> wrote:
> I have a TV101 and an MX5c camera. I would like to be able to be able to__________________________________________________
> increase the focal length of the system so that I can attempt to take
> pictures of Saturn and Jupiter. I understand that I could use either
> eyepiece projection or barlow(s) to increase FL. What would be the
> reccomendation of the group. I have a decent selection of EP's and a
> single x2 Meade 140 barlow. Using a flip mirror, how would I arrange the
> various elements? Would the same reccomendations hold to simply increase
> the FL by x2 to get the Nyquist sampling right for deep space imaging?
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> Before you buy.
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