Canon EF 35mm f/2 IS USM lens review by Ken Rockwel: It is very sharp, but not much better than Canon's older and much cheaper 35mm f/2 lens. If you need something really better, go with the EF 35mm f/1.4 L Lens.

"The Canon 35mm f/2 IS is among the sharpest wide lenses I've tested, just like the 35mm f/1.4 L (1998-) and original 35mm f/2 (1990-). The only differences between these and the 24-70/2.8 L II is if you're looking in the far corners on full-frame wide-open, in which case, the original 35/f2 is slightly less sharp, and all the rest are also about the same, with this 35/2 IS and the 24-70/2.8 L II being very slightly better in the corners wide-open.

This 35/2 IS is extraordinarily sharp and contrasty, even at f/2. Throughout most of the image, there is little or no

difference between f/2 and stopped down, as seen on a 22MP 5D Mark III at the test range at infinity. By f/2.8, 99% of the image has already reached optimum, and at f/4, the entire image is optimum.

The last couple of millimeters in the corners are a little softer at f/2 due to coma, improving greatly at f/2.8, where the corners are now 95% as sharp as the center. By f/4, the entire image is as sharp as the center — very sharp.

So long as you're in focus, sharpness doesn't vary much from perfection, except by f/11, where diffraction softens the image.

Throughout most of the image (except the last millimeter in the corners), this lens is just as sharp at f/2 as it is stopped down!

Hey, sorry to spare you endless boring charts, but with a lens this good, there's nothing to show other than sharp pictures under all conditions.

The biggest detriment to sharpness will be a lack of proper vision and technique, never this lens. I bought mine directly from Adorama. I can't vouch for anything if you buy from a local store or chain where you never really know who's opened and played with your lens before you buy it. I never buy retail; too many risks, so why pay more?"

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