17-40mm ultra-wide-angle zoom lens with f/4 maximum aperture for Canon SLR cameras.Diagonal angle of view 104° - 57° 30' 3 aspherical lens elements and super UD glass element create superior optics in all conditions, Closest focusing distance : 0.9 feet The Canon EF 17-40mm f/4L USM ($839.99 direct) is an ultra-wide to normal zoom lens that is compatible with Canon EOS SLR cameras. When used on a full-frame body, the lens provides an extremely I asked the other question, but I don't understand. It's an EF lens, and the Canon Rebel – Learn about Canon - EF 17-40mm f/4L USM Ultra-Wide Zoom Lens - Black with 3 Answers – Best Buy This lens focuses as close as 11 in. / 0.28m, and offers both Canon's full-time manual focus and a powerful ring-type USM for fast and silent AF. It has a constant f/4 maximum aperture, and offers the choice of screw-in 77mm filters or a holder in the rear of the lens for up to three gel filters. The image below was taken, hand-held, in available light, with the EF-M 11-22 at 11mm, the EF 17-40 would not have got the shot in the cramped area inside. Canon EOS M5, 11-22@ 11mm, f/4, 1/500sec, ISO-500. You can even get great close-up images with the 11-22, because of the massive depth of field afforded by the short focal length, as per キヤノンEF17-40mm F4L USMは、EOSカ特長メラ用の高性能広角ズームレンズです。. USMはUltrasonic Motor(超音波モーター)の略称です。. 用することにより、優れた描写性能を実現しています。. 2.超音波モーター(USM)搭載により、高速で静かなオートフォーカスを実現し 您当前在 首页 EF变焦镜头旧产品 EF 17-40mm f/4L USM EF 16-35mm f/2.8L II USM EF 17-40mm f/4L USM EF 24-70mm f/2.8L USM EF 24-105mm f/4L IS USM EF 24−105mm f/3.5-5.6 IS STM EF 28-135mm f/3.5-5.6 IS USM EF 70-200mm f/2.8L IS II USM EF 70-200mm f/2.8L IS USM EF 70-200mm f/2.8L USM EF 70-200mm f/4L IS USM EF 17-40mm f/4L USM Obiektyw Canon EF17-40 mm f/4L USM to lekki super-szerokokątny obiektyw o zmiennej ogniskowej. Szczególnie dobrze sprawdza się z cyfrowymi lustrzankami EOS o współczynniku konwersji ogniskowych większym niż 1. LoJr.

canon ef 17 40mm f 4l usm price