Okay, another thread had degenerated into like 10 pages of arguments over why Rebels need to have micro-adjust settings. (Actually "degenerated" is a relative term since the thread was pretty much at the bottom of the barrel to begin with, but that's another issue)
Anyway, at least one individual says doing a micro adjustment is easy and can be done on the fly while shooting, simply using any clearly delineated object (crack on a wall, blade of grass). That seems surprising to me, as I read numerous other threads here on the "best" system for adjusting lenses and most seem to require a pretty extensive set up with resolution charts, very bright lighting, rock-solid tripod, etc. etc. There is even a software program that has been promoted by many on this site as an aid to doing micro-adjustments.
Full disclosure here: I've never felt compelled to do any adjustment on my 7D. Maybe I'm just lucky with lenses. Maybe because I usually stop down. Maybe because I'm usually shooting with my 15-85, or my 70-300 L or 100-400 L and the depth of field compensates for any small differences in focusing plane. Maybe because the smaller sensor offers better apparent depth of field. Maybe because I've gotten pretty good at using Photoshop to increase apparent sharpness. Or maybe I'm just damn good.
So, which is it? Easy to do on the fly or four hours of my life I'll never get back setting up lights, tripod, camera, charts?