Well, some great comments here on my original post, thanks for the input and opinions.
I've purchased the Plus version of FoCal and will be giving it a go tonight.
From what I read you can't do fully automatic calibration with the 5D3 but it's as close and you can get.
Anyone know if I add my 1.4 TC to my 70-200 will the camera store separate AFMA data from it than when I use the 70-20 on it's own?
I'm looking and reading about this too....I have a 5D3.
I'm curious, since you have to do the adjustments manually, why did you get the PLUS version rather than the standard version?
I read the FAQ page about 'why they say you should still buy the higher versions', but it didn't make much sense to me what else you get out of the plus vs the standard version really.
Curious your thoughts on the Plus version and why you got it...?
Thanks in advance,