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8" f/4 astrographs (BINTEL - ORION)
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21-04-2010, 05:41 AM
gbeal
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Join Date: Oct 2004
Location: New Zealand
Posts: 4,346
Better is a loose term mate. It will provide a bigger image scale, as they are ~800mm focal length. Also brighter, at f4.
Downside is they are heavier, my AT8" is quite solid, so the mount requirements go up.
Gary
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