Excerpt: I've been using this lens for wildlife photography and have zero complaints. It is not as sharp as the 70-200 L lenses but I do this for fun and have yet to feel like l wish I had spent more on a better tele zoom. I don't think pro's would consider this lens but for enthusiasts like me, it's the perfect mix of performance, size, and price. Plus it's black so you you aren't screaming "I'm rich!" when photographing in lesser developed nations.
Summary: I love this lens, took it to Alaska and got some GREAT long-shots of an eagle nearly 100 ft. up in a tree. The seller was great, and went to extra lengths to make sure I got it in time for my trip.
Excerpt: This lens allows you to capture exceptional outdoor photography. I bought this to make wildlife safari videos and capture photos in the great outdoors. It's ability to pull animals right up to you for quality shots is awesome.
Excerpt: I purchased this lens for the extra focal length to use specifically at cross country as well as track and field events. The photos it yielded have won places in the hearts of the athletes and their parents. As an extra bonus, the lens opened up new possibilities for wildlife and macro shots. I did not downgrade for the lens creep because if no one had mentioned, it really would not have bothered me.
Pros: Consistent Output, Fast / accurate auto-focus, Nice Bokeh
Excerpt: I have been using a Canon 100 - 400mm "L" lens for several years and love it. The biggest issue I had with the 100 - 400mm lens was it's size and weight. A friend bought a 70 - 300mm lens and after looking at it I think it would fill a gap I had not being able to carry a long lens in my smaller camera bag. I'm pleased with the results of shooting with this lens as well as the ease of carrying it.