Excerpt: I'm an amateur photographer. I have a Canon EOS T2i camera that I received for Christmas two years ago. I volunteered to take photos at my son's football games. He's 11 years old and he plays during the day. I was using a Canon 18-200 mm lens at first. It worked fine, so I thought. Two people recommended the EF 70-200mm f/2.8L USM (no image stabilizer) to me. I debated for two weeks.
Pros: Consistent Output, Durable, Easily Interchangeable, Fast / accurate auto-focus, Rugged, Strong Construction