"Hi everyone, Its been a while since we have got together but I think thats a drawback of winter season. Anyways, I was thinking of buying new lens and thought what better way to decide than to discuss it with the gurus. ... MoreGist - I have a Canon EOS Rebel Ti1. Currently my armory(hehe) consists of the basic lens kit 18-55 EF-S, 55 to 250 EF-S (i think both are 3.5 to 5.6) and a canon 50mm 1.8( the cheaper one w/o the USM). I have a tripod too but the heavy one - Frankly I hate carrying tripods. So if Now then, I am thinking of upgrading my lens and hence will be selling the two lens kit lens I have. I am thinking of the sigma 24-70mm F2.8 IF EX DG HSM. ( http://www.sigmaphoto...) What do you think of this one? Should I go for the Canon L Series Instead? http://www.usa.canon.... I like the Sigma cause its lighter and cheaper but I may be missing on something hence please advice. PS - May be a speed lite 430EX II too so that I can click better portraits or pics at family get together. Please advice. Also, any suggestions for Zoom and Wide angel. What would be your one lens you would always keep on the camera for any occasion? "