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Old 13-07-2009, 12:34 PM
MJ_ (Matt)
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Join Date: Jul 2009
Location: Melb
Posts: 64
Also im just wondering about 0.63 focal reducers, i know they are used to decrease the exposure time in astrophotography, but are they also useful in this case to increase the exit pupil length so such a long FL eyepiece does not have to be used?
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