The Canon EF 17-40mm f/4L USM benefits from weather sealing, with 12 elements in total, … Here's the proverbial Bad Photographers' Wall of Shame: This looks reasonable, and distorts as much as other ultra wide zooms. Buy now from Canon eStore If wide-angle is your thing, then this zoom will give you great quality across its focal range. L-series is Canon's flagship professional lens range and EF 17-40mm f/4L USM delivers with its precision-designed EF optics. The RF version (RF 15-35mm f/2.8L IS USM) is more than twice the cost at $2299. 1.) Back to top. Az EF17-40 mm f/4L USM kis sulyú, különlegesen nagylátószögű Canon EF zoomobjektív. Here's the shot at 17mm, the worst focal length, before and after Photoshop CS2's EF 17-40mm f/4L USM. Get Inspired Get ... EF 17-40mm f/4L USM; Plastic filter threads. Like most wide lenses, the focus is fast and accurate. Thanks for helping me help you! This lens focuses as close as 11 inches (0.28m), and offers both Canon's full-time manual focus and a powerful ring-type USM for fast and silent AF. (473.6 g), measured, naked. EF 17-40mm f/4L USM. Overview Specification Ratings & Reviews Accessories & Supplies Support Left Right. Le zoom Canon EF 17-40 mm f/4L USM est un nouveau zoom ultra-grand-angle. The Canon 17-40mm f/4 L is a high quality lens with a full-frame image circle that showed really exceptional performance on the EOS-20D we used to test it ... Canon EF 17-40mm f/4L USM … Because it is a very high quality but moderately-priced ultra wide angle zoom lens, the Canon EF 17-40mm f/4L USM Lens is one of Canon's best selling lenses.. Il est particulièrement bien adapté aux boîtiers EOS numériques SLR … It's great people like you who allow me to keep adding to this site full-time. I use these stores. Recently, researchers reported on vulnerabilities found in the communication protocols in the fax functions of certain products. Explore your creativity with expert tips and stories. There's also a gel holder on the rear. No problems here. USM: Ultra-Sonic Motor: It focuses silently. 7 mostly straight blades stopping down to f/22. Complex distortion, typical of every other superwide zoom, difficult to remove if you're trying to replace a view camera. Focal Length: 17-40mm. Here are the full guide images from which the crops are taken: These were shot in program mode, f/9 at 1/125, ISO 50. UD glass is the same as Nikon's ED glass, which helps reduce color fringing. Select your support content. A EF17-40 mm f/4L USM é uma objectiva ultra grande angular EF para zoom, leve, da Canon. When I began in photography, I was shooting weddings. Start saving today by comparing prices and offers on Lenses. The 17-40 f/4L fills out the bottom focal length range of Canon's f/4L zoom lens series.It is the lightest L lens currently made (1.1 lbs / 475g) and is the smallest L zoom lens currently produced (3.3" x 3.8" / 83.5mm x 96.8mm - DxL). More ghosts than the 10-22mm EF-S, but less than the 16-35mm L. EW-83E for full-frame cameras. 20.5 oz./582 g. 1'/0.3 m close focus e9.size = "120x600"; None of these is wide on a 1.6x camera. google_color_bg = "FFFFFF"; There are people called focus pullers whose sole job is to do this. For less money than many other lenses, it offers better performance. These lines aren't curved, they're merely crooked because that's how I held the camera. EF 17-40mm f/4L USM. 17-40mm f/4 L The EF 85mm f/1.4L IS USM medium-telephoto lens is Canon's first 85mm L-series lens with IS capability. If you need the widest possible zoom, that's the 16-35mm L on a full-frame camera. EF 17-40mm f/4L USM. As a viewer you don't notice it because your eyes are also going between actors, but if you pay attention, you can see focus move from near to far. The EF 17-40mm f/4L USM acts as an ultra-wide angle zoom on film or full-frame digital EOS cameras.