Quote:
Originally Posted by tlgerdes
Not quite true Ken, the focuser on the guidescope is just as important. Differential flexure is the primary concern here. If you have movement in you guidescope focuser, your guidestars can "move" and throw your guiding out the window.
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I'm not talking about a floppy focuser here!
Of course we want everything as a nice solid fit or it is just junk.
I read Angus's comment as if he was thinking that the image Subs are taken with the guidescope.