I've owned three copies of this lens... and I keep trying it but I keep getting disappointed. I'm not really pleased with any of the zooms I've owned. I think my primes blow them out of the water. I have owned the 70-200mm f/2.8L USM as well, and I like it... but not at that price. This is a solid value for someone wanting to get an outdoor L lens, but I don't love it... and I think my old 55-250 was as solid as long as you are making huge prints.