Thread: 4x Powermate or planetary camera?
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Old 27-01-2018, 11:15 AM
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Merlin66 (Ken)
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Join Date: Oct 2005
Location: Junortoun Vic
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Coming in late....
A x2.5 PM or a good x3 Barlow will get you into the optimum focal ratio with the C8 (rule of thumb - focal ratio= x5 pixel size.)
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