Canon EF 70-200 f4 L IS - A fantastic telephoto zoomlens. After the 24-70, this is the lens I've used most often for weddings and events. It's great for candid shots, portraits and even landscapes. It's also much sharper and lighter than the 70-200 f/2.8L IS. Get this together with a 24-70 or 17-40 and you've covered very usefull range.