Excerpt: My favorite lens. I've read reviews complaining about how this lens is not fast enough for sports, which has not been a problem for me shooting football and soccer in daylight. Under the lights might be an issue but have not tried that. Focusing seems fast enough.
Excerpt: Nice lens for action photography. I use it for taking pictures during my daughters' soccer games. Clear photos, quick focusing, and easy to zoom in and out. It is a bit heavy, but I would suspect most lenses of this size are heavy. Vibration reduction is good for what you pay, but not stellar.
Pros: Consistent Output, Easily Interchangeable, Fast / accurate auto-focus
Cons: Heavy, Poor in Low Light, Slow focus in low light
Excerpt: I use this lens for out door off-roading. The lens is very clear and allows for plenty of light. I shoot with a Nikon D5100 and this is the first lens that I bought for it besides the kit lens that it came with (18-55mm).