Kitűnő optikai teljesítmény. Az EF17-40 mm f/4L USM objektív kilenc csoportban elrendezve 12 lencseelemet tartalmaz. A lencseelemek Super Spectra bevonata gondoskodik a kitűnő színkiegyenlítettségről és minimálisra csökkenti a szellemképet, valamint a becsillanást. A 17-40 mm zoomtartományban egyenletesen kitűnő képminőség

Buy the Canon EF-S 17-55mm f/2.8 IS USM. Canon EF-S 17-55mm f/2.8 IS USM User Reviews. more expensive option than the reknowned and beautifully made 17-40mm f/4 L. This lens has had to
Not much difference between the two lenses. In the extreme corners the 17-40 is sharper. 17-40 has noticeably less vignetting. 45mm f/6.3 vs 40mm f/4: When both wide open, the sharpness on the 15-45 is better. But stopping down the 17-40 to f/5.6 results in just as sharp images as the 15-45 wide open at 45mm f/6.3.
by Bryan Carnathan. Load Comparison Images. 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. The 17-40 f/4L fills out the bottom focal length range of Canon's f/4L zoom lens series . Canon EF 17-40mm f/4L USM. Canon EF 17-40mm f/4L USM. Objektyvo jungtis: Canon EF. Tinka viso kadro (FF) ir APS-C jutiklį turintiems fotoaparatams Apsaugotas nuo lietaus ir dulkių. Židinio nuotolis?: 17-40mm. EF17-40 mm f/4L USM este un obiectiv EF Canon cu zoom superangular destinat profesionistilor si amatorilor avansati care utilizeaza aparatul SLR EOS. Obiectiv cu marire standard, pentru aparatele digitale EOS SLR. Ramanand un obiectiv excelent atunci cand este utilizat pe un aparat SLR analogic, EF17-40 mm f/4L USM este potrivit in special In terms of optical performance, the EF 17-40mm matches the EF-S 17-85mm by getting the highest resolution from the best cropped-frame bodies so far, while also delivering sharp, high contrast results with minimal colour fringing. The corner sharpness, geometric distortion and light fall-off results on a cropped body are also very respectable. PHtXwf.
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    • canon ef 17 40mm f 4l usm review