How to see lens MA settings in a given photograph??

gjl711 wrote in post #17261154
I think MFA is applied whenever AF is used. In your case it's value is zero. I was manually focusing so AF is not being used thus MFA is not applies and it does not show up in the info screen.

Thanks. Makes sense.

Yep,

DPP 3.14.41 shows MFA level in the INFO panel for my 70D files.

EXIFTool (EXIFToolGUI via) also shows MFA level as well as Mode (By Lens or All Lenses) under the two tags below on the "Maker" tab:

AFMicroAdjMode : Adjust by lens
AFMicroAdjValue : 3

Gregg.Siam wrote in post #17260700
That seems like a horribly inaccurate way to MA a lens and just adds more confusion as to what is going on. There are so many variables with that setup that I would never trust it.

I've used the graduated sheet (series of evenly spaced lines, with a "zero" line and a couple stars in the middle) and tripod setup to successfully MA multiple lenses. It's not clear to me where you think all the variables are coming from. Constant lighting, constant focal length, constant exposure (ISO, SS & aperture), constant perspective & distance to the subject, constant AF method (typically micro point, using the center point). If feasible, I shoot tethered, so I can view on the laptop and adjust accordingly. Setup is a little bit of a nuisance, but the process is quite simple.

Why do you feel this would be an inaccurate method, and do you have an alternative method you feel is better?