[BAA Comets] Help please?

[Mike Paling]

Hi ...
I am trying to get into imaging comets .... I am very much a beginner with this aspect of astro photography.

I have a pretty decent permanent setup here in Nottinghamshire ... my mount is capable of up to 20 minutes unguided tracking and my CCD mono camera has LRGB (and also Ha) filters. My scope is a 123 mm x 780 mm focal length f6 refractor.

Can anybody suggest suitable exposure times to use with my LRGB filters? 

Many thanks in anticipation of any help that can be given to my question :-)

Regards Mike

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