BTW, I am considering getting the 7D2, and would like to be able to efficiently do microfocus adjustment for my lenses. Could you recommend a good product? Is the Reikan FoCal straightforward? Or is it a bunch of fancy programming that is more trouble than just manually AFMA-ing a few lenses on one camera?
Lenses used are the EF 400 f/5.6L (+/- 1.4 x TC), EF 70-200 f/4 IS, and EF 180 f/3.5 macro (+/- 1.4x TC; don't laugh, I use this combo for 1:2 to 1:5 magnification shots of snakes, including venomous snakes). Also I imagine that I would work up the 35 Art, which sometimes serves as the "longish normal" lens on my current 60D when it isn't being the "wide-ish normal" on my 6D, and the EF-S 15-85, which is the casual walk-about lens.
Unfortunately I can't use MF for my photography.
Reikan Focal is very very easy to use. The "tricky" part is setting up properly.
Use enough light, preferably a non-flickering light like the sun. Have absolutely even light and NO shine or reflection.
Buy the hard target from Reikan.
Have your camera bolted down as sturdy as humanly possible.
Use the right distance.
It takes a bit of effort, but then you will get a value that works straight away. Just not the Sigma's. They run through the test without issues at all, it all looks great, start ahooting and you will spend thousands of shots trying to figure out the value while the lens misses back and front at complete random.