Thanks Dough. Longer subs shouldn't be a prob with my nice dark skies, as long as the mount and guider are up to the challenge
Not at this stage Keith, though I might come back to it in a couple of weeks and take some RGBs with the 20D and add them together. ATM I'm just playing around and getting the feel of the new observatory and the SX-H9 and WO72 combo.
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