Canon 17 40mm f 4l

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Canon 17-40mm f/4L USM

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The Canon 17-40mm f/4L USM

The Canon 17-40mm is a stop slower than the Canon 16-35mm, but otherwise there’s very little difference between them. Some reviewers have found the 17-40mm is actually sharper at the wide end, and it may be less prone to lens flare. It’s an excellent wide-angle lens at a very reasonable price.

Roger's Take

Like the Canon 70-200mm f/4, this is a less expensive “L” lens that has very good image quality. I prefer it to the Canon 16-35mm f/2.8 for landscape and outdoor wide-angle shots. It’s every bit as sharp, perhaps sharper, and more flare resistant. Plus, it takes more reasonably priced 77mm filters. If you don’t need f/2.8, this is the wide-angle lens of choice for full-frame cameras in my opinion.

On a crop-frame camera, the Canon 17-55mm f/2.8 IS offers image quality nearly as good with added image stabilization. It’s a bit more “fragile” than the 17-40mm, though.

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