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Old 23-03-2010, 11:45 AM
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bmitchell82 (Brendan)
Newtonian power! Love it!

bmitchell82 is offline
Join Date: Jul 2008
Location: Mandurah
Posts: 2,597
The other way you can do it is download a small program

Ron Wodaski's CCD Calc
housed at New Astronomy Press.

I use it all the time to see what effect things have.

within that you put the information of your telescope, camera and you get the image size, arc per pixel (which is what marc is talking about).

Good luck!
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