I currently have the 24-70 V-I and was thinking about selling it and purchasing the new version II. This is probably the lens that is most on my camera so i thought i would be a good idea and get the new version.
I was wondering if the version II has the same interior mechanics as the version I where when you zoom in and out, the lens runs on internal tracks to move back and forth.
Also, is the v-2 that much better in IQ?
Thanks in advance, Al
5D-2 Mark ii 

