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      07-30-2009, 03:03 PM   #17
BMW F22
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Quote:
Originally Posted by PNF View Post

Just so you know, the 24-70mm has no IS and even though it has f2.8 aperture, it is often not fast enough in low lit situations as well and IS feature really HELPS and allow you to go even to say 1/40 without a monopod.

Bottom line: for a crop body, I highly recommend my glass 17-55mm f2.8 IS USM. Unless you're thinking going FF soon, then you should get the 24-70mm. Else, while everything is perfect, the 24mm just is not wide enough and you'll feel it if it is an "everyday" walk around lens for you.
It's true that the 24-70mm has no IS but the faster aperture can help freeze motion (IS won't). To be honest in low light conditions even the 2.8 is inadequate a lot of times (especially with fairly fast subjects). I debated between that 24-70 and the 24-105 (reach & IS) and went with the former because I don't really care for IS and the 2.8 aperture is more important to me than the extra reach. With that being said, if you have a good camera that performs well at 3200 ISO, the f/4.0 is fine. I just really like the 2.8 for the bokeh.