Battle of the Ls...appreciate the advice! EF 24-105mm f/4L IS USM Vs. EF 24-70mm f/2.8L USM Gah. So expensive, but I think I've convinced my mother to go for it (don't laugh, I'm 18 and it's my graduation present) So far I'm leaning towards the 24-105 because it has the IS, a bigger range, and I don't think I would need the extra f stops for anything other than a hand holdable shutter speed, which the IS should cover, no? (I've never used an IS lens) The idea of being able to switch from very wide angle to portrait range is pretty incredible...I'm leaning heavy towards the 24-105, but the other lens is fairly similar, is there any reason to consider it? For those who didn't see my other thread, this lens will be my primary lens for general picture taking, to compliment a 70-200 f/4 L that I can borrow most of the time. This includes everything from portraits, to long exposures at night, to hiking, street, and nature photography. The lens will be on a (film) Canon Rebel Ti.