The lens is made just fine, there is nothing to complain about. A separate reason for enthusiasm is that with the protective filter installed, the design becomes completely protected - the front movable lens group is hermetically sealed by the filter glass and neither dirt nor dust can penetrate inside. Geometric distortion is minimal, Canon EF 20 2.8 distorts much more than 16-35 at 16mm. You can shoot people, just don’t make large facial portraits with such “glass”, examples of pictures - http://vk. Com/album-33886787_192389266 The detailing is simply amazing, the sharpness is excellent, and right out of the box, without additional adjustments. I use this lens with 6D, I thought about trying it with 550D, although the probability of using such a pair in real life is vanishingly small - for 550D there is just the perfect Canon EF-S 17-55 2.8 IS USM. Overall, the lens has a "buy for a lifetime" feel and is one of Canon's best zooms along with the 70-200 2.8 IS USM. If you have the opportunity to spend 50 thousand and the need for such focal lengths - buy this lens without a doubt!
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