Quote Originally Posted by District_History_Fan
Most of us that own either of these lenses went thru the same debate before buying. ... It is a fine lens, but unfortunately, it has been hit and miss at 2.8 on my 40D (and XTi). ... Stopped down to f4-5.6my 24-70Lis crazy sharp. The colors and contrast are superb.

Pretty much my exact experience. I waffled back and forth between both of these fine lenses before finally settling on the 24-70. Like was mentioned earlier, the 24-105 may be the better lense "if it was your only lens", but it's not my only lens. And 24-70, after reviewing my shots, covered my focal length needs probably 90+% of the time. And when it didn't, I could switch to my other lenses.


I have noticed also, on my copy of the 24-70, it can be hit or miss at 2.8 on my 50D. Not sure what would cause that. There's a very good chance it could be user error as I'm not that good! :-) But as mentioned, it is crazy sharp once I get to f/4.


I'll probably always wonder if I would have preferred the 24-105, but if I had gotten the 24-105, I'd be wondering the same thing about the 24-70. Pick the one that fits your needs (f/2.8 or 105mm) and you can't go wrong with either one, I would guess.