Quote:
Originally Posted by frolinmod
I agree with you except that I'm able to get down to 30 degrees okay. But I mentioned this to Patrick Wallace and he disagreed! He thinks one should go as low as one's horizon permits. I hate to disagree with Patrick, but I'm not on a high mountain with perfect atmosphere, so...
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I am not sure who Patrick Wallace is but with amateur gear and amateur locations anything below about 45 degrees gets poor. You can see it in the subs if you image over several hours. The stars just get fatter and fatter in luminance as the scope goes lower. That's at long focal length. With short focal lengths you tend to get away with lots of things!
Greg.