Found this if it helps....
http://focustestchart.com/focus10.pdf
Roo
Call me Roo......
Nikon D300s, Nikon 35mm 1.8 DX, Nikkor 50mm 1.4 Af-S, Nikon 18-200mm VR, Nikon 70-200VRII 2.8, Sigma 105 Macro, Sigma 150-500mm f5-6.3 APO DG OS HSM, Tokina 12-24mm, Sb-600, D50, Nikon 1.7 T/C, Gitzo CF Monopod
Not sure if we are all singing from the same "hymn sheet" here but I decided to do a search for AF Micro Adjust on the Canon 7D and 5D cameras and on page 211 of the 7D owners manual and page 181 for the 5D, I found these instructions (however they both have a warning logo at the start of these instructions) and I quote:
"C.Fn III-5:-Normally, this adjustment is not required. Do this adjustment only if necessary. Note that doing this adjustment may prevent correct focusing from being achieved.
You can make fine adjustments for the AF's point of focus. It can be adjusted in +/-20 steps (-:Forward/+: Backwards). The adjustment amount of one step varies depending on the maximum aperture of the lens.
Adjust, shoot (L), and check the focus. Repeat to adjust the AF's point of focus.
With setting 1 or 2 selected, press the <INFO> button to view the register screen. To cancel all the registered adjustments, press the <DELETE> button.
0 = Disable.
1 = Adjust all by the same amount
The same adjustment amount applies to all lenses.
2 = An adjustment can be set individually for any particular lens. Adjustments for up to 20 lenses can be registered in the camera. etc.etc.etc.
All as plain as mud to me but the manual does show what the adjustment registers look like before and after the +/- adjustments look like and whether they apply to all lenses or only selected ones
Richard
Discovered we were reading from the same hymn-sheet, just I was about 4 pages behind, found the canon post over in that forum
Richard