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good choice.
You could happily use it at either focal length, depending on the field of view you want and the seeing. It will take about half the time to get an image at f6.3, but finest details may not be quite as well resolved in exceptional seeing. I use my QHY8 (same CCD) with an 800mm fl scope and it works fine under typical seeing at my sea level location.
The chip has pretty deep wells and an excellent anti-blooming mechanism - stars will not bloat. These CCDs are quite sensitive and produce nice clean images - you should really enjoy using it.
Last edited by Shiraz; 21-02-2013 at 06:26 PM.
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