Thank you wlater_shulz, warm to the letter

Now maybe i will look like a nit-picker, but still: some apertures on ML overlay are slightly off:
5,0 4,9
6,3 6,4
7,1 7,0
9,0 9,1
10 9,9
13 12
20 19
29 28
first column is what shows LCD panel, and second ML overlay. These are just wrong values.
I tried this on Tamron AF 17-50 2.8 non VC and Canon 17-85 IS USM. Wrong values was same on both lenses.
And one question: what is -0.5° value on appended screenshot (top-left corner):

When I turn on camera, this value it's not there, just time. But after a while it pop's out. Values what I noticed was
=0.0° (green type, others was white), -0.5°, -1.0°, -2.0°