Thanks everyone for the replies and comments. Looks like all I need to do is control the noise a bit better and call it done. I only used the free version of Noiseware for that.
Jo, the astrograph is a small Companar: D=132mm F=330mm (f/2.5).
It may be the only one of its type in existence as it is too complex and difficult to make as a commercial proposition.
Stefan
Last edited by Stefan Buda; 06-01-2014 at 07:08 PM.
Reason: Dropped an o.
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