Thread: Crayford vs. dual speed rack and pinion focusers
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Old 16-10-2020, 12:08 PM
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pkinchington (Peter (Kanga))
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Location: Melbourne,Australia
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Crayford vs. dual speed rack and pinion focusers
Hi,
I am looking at purchasing an 80mm apo f6 to f7.5 for astrophotography - What focusser type is best for me a crayford or dual speed rack and pinion?

Regards Peter
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