How does one measure the amount of focus available
in a focuser?
Is it only the length of the focuser drawn out from
where the knob exists or is it the length of the entire
focuser where it is attached to the tube - to the
full drawn out end?
Vittal
in a focuser?
Is it only the length of the focuser drawn out from
where the knob exists or is it the length of the entire
focuser where it is attached to the tube - to the
full drawn out end?
Vittal
