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Old 04-12-2010, 02:17 PM
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blink138 (Pat)
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Join Date: Aug 2009
Location: perth w.a.
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formula

yes there is
pixel scale = 205 . pixel size / f.l
so
pixel size = 2.5(upper limit arc.s/pixel) times f.l (560mm @f2) /205

interestigly i picked up another thread revealing for hyperstar imaging aim for 0.5 - 1.5 arcseconds per pixel which the math reveals around a 4.5 micron size
be careful
pat
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