Canon 16-35mm f/2.8L III USM Features. High-performance L-series lens: Ultra-wide-angle zoom with f/2.8 maximum aperture for unmatched clarity; All-new optical design: Drastically improved sharpness in outer and corner regions of photos; Advanced Coatings: SWC and ASC technologies reduce flare, ghosting, and aberrations About this item. High performance L-series ultra-wide-angle zoom lens with constant f/2.8 maximum aperture. All-new optical design for significant improvements in outer and corner sharpness. Sub wave length Coating (SWC) and Air Sphere Coating (ASC) help to significantly reduce flare and ghosting. The Canon EF 17-40mm f/4L USM Lens is a staple for most photographers. I purchased mine about 10 years ago, and I am about to retire it. the more expensive Canon EF 16-35mm f/2.8L III USM Lens The Canon EF 16-35mm f/2.8 USM L III is, of course, an improvement over its predecessors. If you stop down a bit you can achieve edge-to-edge sharp images at all focal lengths even on a 50 megapixel camera. That's quite an achievement! The image corners are a bit soft at f2/8 and the extreme ends of the zoom range though. Find support for your Canon EF 16-35mm f/2.8L III USM. Browse the recommended drivers, downloads, and manuals to make sure your product contains the most up-to-date software. 约88.5 x 111.6. 重量 (g) 约640. 佳能EF16-35mm f/2.8L II USM是2001年12月上市并广受欢迎的EF16-35mm f/2.8L USM超广角变焦镜头的后续型号，采用3片不同类型的非球面镜片和2片UD (超低色散)镜片，实现了比其上代型号更高水平的图像画质。. 这款新的佳能变焦镜头继承了上代型号 Lenti UD e asferiche. L'obiettivo EF 16-35 mm f/2,8L II USM è dotato di tre lenti asferiche che garantiscono nitidezza e contrasto in ogni zona del fotogramma lungo tutto il campo focale e due lenti UD (Ultra Low Dispersion, a bassa dispersione) che eliminano l'aberrazione cromatica. 佳能 ef 16-35/2.8l iii usm 综述 该镜头作为被广泛使用的EF 16-35mm f/2.8L II USM的升级产品，通过应用众多EF镜头的新光学技术，实现了从画面中心到边缘成像质量的显著提升，从而满足当今高像素EOS数码单反相机对镜头高解像力的要求，同时16-35mm的焦距范围能满足风光 Canon EF16-35mm F2.8L ll USM. Ⅱ型となった本レンズは、従来型に比べてレンズが2枚増え、鏡銅が若干長くなり、重量も若干増加しています。. さて写りはどのように違うのかと従来型のユーザであった筆者はテスト結果を楽しみにしていました。. 従来型は Canon EF 16-35mm f/2.8 L III USM Lens - Black - 0573C002 (42) Total Ratings 42. $1,059.00 New. $795.00 Used. Canon EF 16-35mm f/4 L IS USM Lens (125) Total Ratings 125. fAjXjhA.