Hey all... So - I've been printing on my devere 504 for the last year or so... to make a long story short I can't use the focus knobs because it's set up for murals... that being said - I have to unlock the neg or light source track and then guide it gently up and down from the position it needs to be in for best focus, and then lock it down again. At any rate- when I'm doing bigger prints - it requires a lot of back and forth between the floor with my focuser and the head. This can be a multi-hour affair - JUST TO GET THE FOCUS. The pay off is totally worth it - ultra crisp grain, etc... but getting there is a BIG pain in the pitootie...!! Has anyone dealt with this kind of thing before?? Maybe Bob Carnie....?? Others?? I'm at the 1.5 hr. mark right now - and short of rigging up a special mechanical assembly... I was hoping one could set up some sort of trick, using mirrors - or god knows what to achieve rapid, accurate focus... any takers??