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Old 14-11-2007, 09:43 AM
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[1ponders] (Paul)
Retired, damn no pension

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Join Date: Nov 2004
Location: Obi Obi, Qld
Posts: 18,778
Not much to tip about really. The biggest secrets are
- make sure your focus is spot on
- when using a lens don't use your fastest f ratio, stop it down a couple of stops to help deal with lens aberations
- bracket your exposure lengths, ie if 1/240 sec looks ok then run a few at slower and faster exposures JIC. You don't have film to worry about so snap as many as you feel comfortable with.
- if you have luna rate on your scope use it, but the moon will still move out of fov in the dec direction.
- make sure your focus is spot on, focus carefully, use a hartmann mask on a nearby bright star if you can.
- take multiple shots at the same exposures. seeing changes by the fraction of a second so images taken at the same exposure can vary in quality.
- did I say make sure your focus is spot on. Take your time and tweek it. Use a focusing aid on a close star. The best seeing and transparency in the world is wasted if your focus is out and no amount of processing can make up for missed focus.
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