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View Full Version here: : focus slippage on Meade APO 80mm


graham.hobart
02-06-2011, 01:23 PM
Hello gang, had a good night Tuesday but noticed the weight of my DSLR was pulling the focus out, used the screw lock but then when the temp changed it kept needing re-focusing. It's a 2 speed crayford. I noticed some screw holes/ allen holes on the back of the focuser. Is there any way to 'stiffen' the draw tube without actually locking it, so I can still adjust focus but it doesn't slide out so easily?
it looks like this (the scope)
graham