Summering: I've used this lens with a Canon 5Dmk3 & a 50D. The lens is heavier than the Canon 100-400 f4-5.6 lens but, as most of my use is from a hide the lens is usually mounted in some way or on a beanbag. If not in the hide, it's usually used with a monopod, which works well & the lens even gives good results hand held, photographing birds in flight. The AF is fast & seems accurate & the Optical Stablisation is very effective.
Utdrag: OK, so it is not the Canon f4.L lens, but it is less than 1/2 the cost. I use this lens to shoot wildlife, mainly BIF. Tracking with this lens took a while to get use to because of its size and weight. Now that I have used it for a while I love it! The difference in the aperture is so little it basically makes no difference. It is a great lens for the money, and it handles a 1.4X TC very well, making it a 700mm lens. In fact, I hardly ever take the TC off of it.
Fördelar: Consistent Output, Durable, Fast / accurate auto-focus, Nice Bokeh, Rugged, Strong Construction
Summering: This is a brilliant lens for the money, if it was a Canon you would have to double the cost.. The only downside for me is the weight due to all those lenses in there. So I only use it when I know I can sit down in a hide.
Summering: Using a Canon 70-300mm EF 4-5.6 L IS USM for pretty much all of my wildlife & dog photography, I had previously invested in Canon 100-400mm lens in order to extend the reach. Whilst this is a good lens, I wasn't too keen on the 'trombone' zoom & I couldn't shoot close subjects, so I decided to look for another lens which would give a greater all round scope of focal length. After due consideration, I decided on this Sigma which arrived today.