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OK, now I thought I knew exactly what I wanted but I've started having doubts. I've decided the stepper-motor focus control is beyond what I need (and more importantly can afford). So the choice is between the DC motor focus and the 2-speed manual (with focus lock). I've used both. On the refractor the motofocus was great, but mostly because it eliminated tube shake. On the dobs even the GSO 2-speed is nice to use and the manual operation is more intuitive than pushing buttons.
So, it seems to be an argument between intuitive operation vs. stability. I expect stability will win but I'm wondering how much a smooth manual focusser will decrease shake?
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