Robofocus is only $500!!
!! Bargain..
I agree completely Doug, if robofocus is that cheap, FocusMAX is free, there is the simplest solution to beating any focus drift.... You most definitely understand the need too.. From what I've read, the FSQ106 with the reducer is a focus shift nightmare... I'm kind of happy I went for the TMB 80/480 in that respect... Sure the field is not flat like an FSQ, but its minus that major pain in the backside...