Fuck I'm illiterate. I thought the entire front assembly wasn't moving... Assuming it's like the 24-70, the focusing mechanics are all inside, thus the outer element won't move when you focus. Take the lens off and look through the back. Spin the focus ring, you should see some small movements in there.
-=|NS MOD SQUAD|=-
Sabotage//SB § http://sabotagesb.com § Sabotage//SB --EASTERN SAMPLE----B.M.I.T.R.----NS TRANCE FAMILY-- NS isn't skiing's immature younger brother... its skiing's future. Mr.Bishop Otherwise would've ended up like eheath with an fs100 and nothing to put it on, that stupid idiot. Slandypoo