Quote:
Originally Posted by Hans Tucker
The scope is a 5" f/12 APO refractor. I do have the AP 0.67X Reducer so I can go from f/12 to f/8.
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I think a lot will depend upon what you're imaging, and the image scale (arc sec / pixel) you'll be imaging at... e.g. trying to capture a faint nebula in narrowband using a camera with 4 um pixels might be somewhat futile, but imaging bright objects with broadband filters or using a camera with large pixels (or binning) might work out great.
Another way to think about it: at f/8, you'd be at the same focal length as most RCs. In fact, without a 50% secondary obstruction it would have the equivalent light gathering of a 5.7" f/8 RC scope. Considering what some people are
producing with a 6" f/9 RC scope, I'm sure you'll have even better results
