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Old 07-08-2015, 06:10 PM
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Bassnut (Fred)
Narrowfield rules!

Bassnut is offline
Join Date: Nov 2006
Location: Torquay
Posts: 4,781
There are 2 kinds of focuser positioning, absolute and relative. Absolute involves encoders or steppers from a home position, relative is simple DC drive. Both work, but have different performance.
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