I wish I could give the lens 5 stars, unfortunately there was a quality control issue with Canon on the EF 70-300 II IS, there is an internal metallic flake that you can see when the zoom is retracted. I will be returning this lens for a third time, all previous lens have the same issue. Crutchfield has great customer service and I am very thankful for the hassle free return policy.
6 of 11 found this helpful
I recently compared some test shots with my new EF 70-300mm IS ii USM to shots of the same distant subject with the Canon EF 70-200mm f/4L (non-IS version), widely regarded as one of Canon's sharpest lenses. Subject was a building across the valley from my house. Straight-line distance to that building is almost exactly 1/2 mile. The EF 70-200 f/4L is a great lens--had one for years--but I was amazed by the performance of the new EF 70-300mm IS ii USM when shot at 200mm. In the center of each shot, images from both lenses were nearly identical, and both of them were sharp enough for me to be able to read parking signs in the school lot! The L glass images were slightly clearer around the edges, but in the center where it matters the most, image quality was essentially the same between the two lenses. Even more surprising, with the new lens, image quality was just as good at 300mm as it was at 200mm. That's very unusual for low-end zooms, which often do a mediocre job at full extension. Stabilization was good with the new lens, too. I was able to hand-hold it at 300mm and easily get shots without any perceptible motion blur. This one's a keeper.
Pros: Great stabilization and extremely good image quality (particularly in the center of images) all the way out to 300mm
Cons: Lack of weatherproofing compared to Canon's more expensive L lenses
6 of 6 found this helpful