Quote:
Originally Posted by RobF
Actually I'd appreciate yours or other people's thoughts on how far to stop down Jason. I'm a newbie at this sort of thing. I gather stopping down should make things sharper, but likely to require longer subs with all the requisite problems (noise, dew, tracking)? 
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I'm actually a little reluctant to say much since my photog experience is strictly terrestrial based... so far

Each lens is different, too, though I find around f8 - f11 to be the best among most lenses. Again it's different with lenses closer to telephoto lengths, so I'm not sure. What I suggest is just to google a review for the specific lens, find out where people find it's sharpest, or even test it yourself against a detailed brick wall or something similar with different aperture settings (and a tripod)
But yeah, stopping it down will either way mean longer exposures, more dew, more tracking issues.. all that fun stuff that you guys get to experience