Canon’s breakthrough multi-layer diffractive optical lens technology provides photographers with superior super-telephoto performance in a smaller and lighter design with enhanced correction for chromatic aberrations. We’ve also added our highly effective Image Stabilization system that gives the equivalent effect of a shutter speed two stops faster. And, it’s built to our professional standards with fast AF, full-time mechanical focus and dust and water-resistant construction.
4Multi-layer diffractive optical lens technology
Small, light, with enhanced correction for chromatic aberrations
Image Stabilization for the effect of a shutter speed two stops faster
Fast AF, full-time mechanical focus, dust and water-resistant
Pros: Fast auto-focus, Superior build quality, Super-sharp images
I use it on a 7D often with a 1.4x converter. This is a splendid piece of equipment and this lens is very consistent, dependable and accurate when used hand held. I have adjusted a little more contrast and sharpness on camera and have achieved stellar results.Wonderful lens, just a pleasure to use.
I've used this lens for several years, and in my opinion it is flawless. Whether hand held, tripod mounted, prime or with 1.4x or 2x extenders the performance has been superb. To my eye the sharpness and autofocus system compare to the 500 F/4 or 20-200 F/2.8, all stabilized.
Pros: Fast auto-focus, Super-sharp images, lightweight
Cons: expensive...but i'd buy an 800mm do in a nyc minut
I bought this lens for an African photo safari. I've used it there and in many other places over the past 5 years. This is the lens I carry mounted on the camera whenever I'm doing any kind of nature photography. Walking on a boardwalk behind 3 people equipped with 600 mm lenses, tripods, cameras etc. we all saw a hawk swoop into a pond catch a frog, land on a nearby branch , and proceed to eat it. I got the photo (handheld) with this lens, they got nothing...couldn't set up in time.
This lens is excellent. It is best when the length of a super telephoto is needed, but personal mobility is also a priority. It is just as compact and handles like the Canon EF 300mm f/2.8L IS USM. But has the reach like that of the massive Canon EF 400mm f/2.8L IS USM. It is great for wildlife, especially when traveling to national, state, and local parks where you may have to do some hiking to get to a certain shooting spot. This lens is also highly effective for outdoor sports. Image quality won't beat the "L" members of the super telephoto lenses, but it does come close and the images are highly useful for professional applications.
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