Quote:
Originally Posted by strongmanmike
......... The focal length of the two scopes are only 1140mm and 1500mm respectively...so as I have said before, who needs long FL?
Mike
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Nice image Mike.
BTW, I ran a quick back of the envelope calculation, to get the same flux through the AP as was captured in the 5.75 hours by the 20", you'd need to expose, well, for about 58 hours. Aperture helps
