
http://www.reikan.co.uk/focal/

It is an automatic AF adjustment program. Set up a target and hit run... It does all the work for you. Very impressive.
I already emailed the developer about the 5D3 and he plans to support it as soon as he can. He plans to have it work with the wide/tele functions as well. He is also adding more features and such.
Worth the money...

Bookmarked, thanks!