Sorry for posting in an old thread, but this seemed relevant. Does anyone on the forum use the 70-200 f/2.8 L USM anymore? I have the 70-200 f/4 L USM, but have pretty much concluded I'm an aperture junky. f/4 even on full frame sometimes cannot produce the desired blurwhere f/2.8 gives more of the look I'm going for.

The II IS zoom is way out of my price range and if I parted with the f/4 version I could pick up the f/2.8 and would likely go the used or refurbished route.

I tried the 2.8 zoom last week on a rental and greatly enjoyed it. The ISO charts here don't look that great, but real world IQ seemed quite good.

Thanks
Dave