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I can't answer about this one, i use a standard SW focuser which has good results. One thing should ask about this one if this has some play in the final shaft.
The standard SW focuser has a small amount of play that means that I have to pulse step in the reverse direction ready for the reverse direction. Bit awkward to deal with but with practice can be overcome.
If this one has no backlash then it will be a good one, otherwise a standard SW focuser will be fine.
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