Excerpt: I deisred catching my little lab's popping motion. F4 might be a handicap for portrait using extreme out of focusing. But F4 is enough sporty picture and IS function is owesome light weight as well.
Excerpt: I have been waiting for this lens all of my career. As a professional photographer for decades I wanted a lens as sharp as my 70-200 2.8, but lighter. Much lighter. With the new cameras and improved ISO sensitivity it meets all of my needs within that focal length range.
Excerpt: The auto focus is very quick. the stabilizer works but not as good as i had hoped. i do not believe i am getting 4 stops out of it. that is just my opinion. it works well but 200 is not quite enough to shoot wildlife in alot of cases.
Pros: Durable, Easily Interchangeable, Fast / accurate auto-focus, Strong Construction
Excerpt: This lens is the walk around lens for our 7D. It gives good range. We have also use it for some micro work with excellent sharpness. It is a good overall lens. The only possible negative is its length. With the hood on it is longer than I would like.
Excerpt: Best Q zoom lens I know of, considering ease of use. My 2nd in 5 years. New one sharper than first, got lucky. Bokeh could be somewhat better, but it's not f/2.8... Light weight outweighs the small draw back. Works well even with the EF 1.4x III.
Pros: Easily Interchangeable, Lightweight, Strong Construction
Excerpt: This lens is truly one of the best pieces of glass that Canon has ever made. I won't spend time going into elaborate detail that can be found in other reviews, but here is how and why I bought this and why you should too.
Pros: Consistent Output, Durable, Fast / accurate auto-focus, Lightweight, Nice Bokeh, Strong Construction