Here are some approximate numbers I ran quickly this morning. Please correct these if you have better numbers, and add more lenses. I'll produce and post a nice database for everyone.
Test conditions: Two vertical lines, 1.5 and 10 meters from camera. Leveled pan head with nodal plate (RRS)
70 mm: 75mm
If anyone has done this work for the 14-24/2.8G, please post!
"Discovery consists in seeing what everyone else has seen and thinking what nobody else has thought"--Albert Szent-Gyorgy