i have run into some money (dont you love when that happens?) and am looking at two lenses.
firstly, i have a t3i with the 18-55 kit lense, and a 50 f1.8. i do a lot of indoor photography, but in the summer i like to go to the zoo and parks with my wife and son, mainly that's why i am looking at a zoom. the two lenses im looking at are...
sigma 17-50 F2.8~ this lense has much better IQ than the canon kit lense i have right now. it's much more useful to me than the lense i have. the benefit of buying this lense, is the ability to replace and sell the kit lense. cost is 669
canon 70-200 F4L~ this is a really sharp zoom. i could keep my 18-55 and have a mediocre walk-around lense, and a very nice zoom. bh is having a sale on it for 599 with no IS. this is the version im looking at. the non-is version. i have a tripod, and a 430ex flash unit. not only is this an L lense, and therefore people will look at me with admiration for my super expensive taste, it's also a range that i dont have currently. if i added this, i'd go to 3 lenses.
thoughts? price range is under 700...any other suggestions?