Bintel Crayford focussers
Does anyone have any experience with the bintel focussers? I find that on my C925 based scope, at high powers I do tend to chase the focus around quite a bit and final focus requires a very gentle touch with minute movements of the focus knob.
Some time back I upgraded to a 2" diagonal and went against advice at the time and bought the SCT style not the refractor style, I have found it a bit of a pain ever since as I find myself moving the EP around the back of the scope a fair bit as targets change and it means loosening the lock ring on the diagonal to rotate it then donig it up again, sometimes an issue in the middle of the night when things have cooled off and everything has tightened up. I was thinking about the combination of a crayfor style two speed focusser to make it easier to deal with at higher power and also eliminate mirror flop (Not a great issue but it is there) and get a refractor style 2" diagonal to go with it. Getting rid of two problems at one.
My issue is I have no experience at all with the Bintel focusser, I would want it to outperform the original in terms of smoothness and fine focus or is it just not worth doing.
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