thestone11 wrote in post #12574917
I wouldn't consider the 17-55mm f/2.8, since it is an EF-S lens. If you have the thinking of going full frame later on, get a L lens for sure. You won't be able to use the EF-S on the full frame. Why spend over a $1000 for something that won't be able to use when you upgrade your body? Not to mention, L Lens hold its value better if you are thinking about reselling your gear later.
The 17-40 is usually for taking landscape photo, f/4 is really all its needed. I personally won't use the 17-40 for walk around lens, for that matter the 24-70mm f/2.8 will be the best IMO. Try to find a used copy if money is a matter. I don't mind the 24-70 has no IS, you don't really need IS on a fast lens like that, on 70-200mm is a different case. I really don't like the 24-105 myself, for a walk around lens, I don't think f/4 is enough, especially indoor. And I personally like shooting in your face photo with nice bokeh, the 24-105mm has worse closest focusing distance than the 24-70mm.
Forgive me for saying, but when I decided to get into photography as a habit over five years ago, I know that one day I will eventually go full frame. That huge step took me four years to take. Within that four year, I started out with the XTi, then to the 40D, and then 5DII. By the time I decided to stop beating around the bush and just get the 17-55/2.8 three years later, I ended up beating myself for not get this lens earlier. All those lost opportunities that I could have had if I just settle for this lens to begin with. Like most people, price was the biggest concern when purchasing a new lens, and the 17-55/2.8 pricing didn't make it any easier. Yes, the 17-55/2.8 may be a EF-S lens, and yes, that means its not compatible for a full frame body. If everybody thought that way, than why is the lens still selling so well, and why is it still valued at almost $1000 used, just a hundred or so dollars away from retail...The fact is, there is NO substitute for this lens, not even the 24-70/2.8. There are pros and cons, but so does all of Canons other lens. You just need to pick the one that is right for you and your current gear set up. The 24-70 on a crop is 38-112, as oppose to the 17-55 on a crop is 27-88. The 17-55 has a 3-stop IS which allows you to stop your shutter as far down as 1/6. Try doing that with the 24-70 without upping your ISO. Now, I'm not saying that those L lens mentioned are bad lenses, that's far from the truth. I'm simply saying that they may not be the best lens for your body. If you decide to go full frame today, tomorrow, or even a month from now, don't get the 17-55/2.8. But if you don't plan on upgrading to full frame till years from now, than why not consider EF-S lens, especially if they are made primarily for crop bodies. BTW, the 17-55/2.8 got a rating of 9.1 on FredM, that's L lens Territory.
Also on that note, the angle of view for EF-S lens, along with its respective hood is made to accommodate the crop bodies. EF lens are not, so you are more likely to flare your image.
FYI, IS is not really need for 70-200 when using it outdoors. Your shutter is usually above 1/300, which negates the uses of IS.