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Imaging at long focal lengths
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28-08-2013, 09:40 PM
gregbradley
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Join Date: Feb 2006
Location: Sydney
Posts: 17,901
I think it could be done. You would just have to take longer exposures and preferably use a more sensitive CCD to compensate.
Its more the aperture rather than the F ratio. What is the aperture?
Greg.
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