Recently bought the Canon 24-105 f4L IS... and I'm not sure I like it.\nNow, to be fair, I haven't had a chance to do any real serious shots\nwith it yet, so I can't judge it according to image quality just yet.\nIt's the "feel" that has been bugging me when I do use it. First is\nthe weight. It is heavier than I'd like, though I tried it in the\nstore for almost an hour and it seemed fine then.\n\nThe main thing is the locations of the zoom and focus rings. The zoom\nring is in the rear and closer to the camera body and the focus ring is\nin the front. This is opposite from my 28-135 IS and I believe it is\nalso opposite from my 28-105, though I have since sold that one so I\ncan't check. I did look on my 70-200 f2.8L IS and it is the same\nconfiguration of the new 24-105 f4L, and I have grabbed the wrong ring\non it a couple times, but it doesn't seem as annoying on that one.\nAlso, even though the 70-200 is bigger, it feels less "bulky".\n\nI keep telling myself that I'll get used to it and in a couple months I\nwon't even notice, and I know that's true, but right now, if I had to\npick up one for some quick shots, I'd probably grab the 28-135 IS just\nbecause it's configured "better" in my mind.\n\nOh, I also don't care for the flimsy pouch that came with it, but\nbought a nice padded lens case used from KEH. That's less of an issue,\nthough I feel Canon could do better with the protective case at this\nlevel.\n\nAnd another thing... :-p ... Anyone know why they didn't make this\nf2.8? It would be great to have the 16-35 f2.8L/24-105 f2.8L/70-200\nf2.8L. I'm assuming the extra stop would have added too much weight\nand/or size.