The incredible IS on the 200 2L can allow you to get shots you jsut can't get with the 135L. I have killer hand held candids I've shot at 1/15 of a sec and I can consistently shoot at 1/25 and I could never hand hold the 135 at that slow. Heck I can't hand hold the 85L at 1/25 and the 200 2L is sharper and has less C/A than the 135L wide open. So yeah, to me it was worth it.
Its sharper So as legendary as the 135 is (I've shot with it and its good) the 200 2L is really in a different league.
http://www.the-digital-picture.com …omp=0&FLIComp=0&APIComp=0![]()
Now take em both into a dark room with a 5DII no flash and shoot some candids where the fastest shutter speed you can get at 3200 iso is 1/25 and see which one you get the shots with.

In any case, I agree that it's a bit problematic as a test subject, but only a few of the shots really suffer from this problem. Many of these are perfectly pleasing visually and I can't criticize them much - I might have dialed back the shutter speed a bit further on some of these (OP didn't tell us what the shutter speed was - maybe they were already bumping against the 1/4000, ISO 100 limit) just to bring out some more subtle details in the chrome, maybe used an ND if one were available (I don't think one was). It's almost always possible to squeeze more contrast out of a less-contrasted subject pair, and in this case there is a hint of blue sky showing up at the top of at least one of the images, which supports my conclusion that these may have been overexposed.


