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ED80, DSI II Pro, Focal reducer
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21-11-2007, 09:06 AM
iceman
(Mike)
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Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,799
Yes, that's right Lee.
FL will be 480mm, aperture is still 80mm, F/R = FL/Ap = f/6.
iceman
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