The title of this thread came from a comment made by Bob Salomon (http://www.largeformatphotography.in...=1#post1379537) in another thread titled "Schneider 210 Apo Symmar Sweet Spot". For all practical purposes, I'm a newbie to 4x5. Accordingly, I was intrigued by Bob's comment and want to know how I can ensure I am "...focusing at the correct distance to maximize the depth of field available at F22 before resorting to stopping down further into diffraction territory"? What technique and/or practice should I follow to achieve this goal? Hopefully Mr. Salomon will find this thread and join in the discussion.

If I've started this thread in the wrong forum, please forgive my newbie mistake and relocate to the appropriate location.

Thanks all;

Jeff