According to Samyang there're 2 high refraction factor elements which help to reduce the weight and size but the lens is actually slightly more heavy and somewhat longer than e.g. both the Canon EF 35mm f/1.4 USM L and Nikkor AF-S 35mm f/1.4G. The front element does not rotate during focus operations. The physical length of the lens remains
2015年8月佳能宣布佳能ef镜头家族的一项重要突破：应用佳能最新研发的br镜片的新一代大光圈l级广角定焦镜头ef 35mm f/1.4l ii usm正式发布。 佳能EF 35mm f/1.4L II USM应用的BR镜片是继萤石、UD（超低色散）镜片及DO多层衍射光学元件之后，又一项能够有效补偿色像差的
Canon’s three 50mm lenses. From left: EF 50mm f/1.2L USM, EF 50mm f/1.4 USM and EF 50mm f/1.8 II. (Source: Canon.) Like other EF lenses, this lens can be used with both 36 x 24mm and ‘APS-C-sized’ sensors, delivering its designated 50mm focal length with the former and the equivalent of 80mm with Canon’s entry-level and ‘pro-sumer’ DSLRs, which have sensors with a 1.6x crop factor.
Canon 35mm f/1.4 L Lens Review: The Definitive All Around-er — Shark & Palm Canon's sensor technology may have lagged behind in recent years, but even their legacy glass remains top tier: the 35mm f/1.4 cleanly demonstrates why Canon is still top dog in the photography industry.
Unlike its high-speed sister lens, the EF 24mm f/1.4 USM L, the EF 35mm f/1.4 USM L showed a very harmonic behaviour in the MTF lab. The center resolution is already excellent straight from the max. aperture and it surely exceeds the resolution limits of the EOS 350D in the sweet spot range (f/2.8-4).
Verdict. The 35mm f/1.4 DG HSM is Sigma’s first large aperture 35mm full-frame lens. It was announced November 2012 and goes head-to-head against the equivalent offerings from Nikon, Canon and Sony. As Sigma’s first lens to define its “Art” product line (the others being “Contemporary” and “Sports”) it is expected to “focus on
Canon. Nasza ocena: 89 %. Uszczelniony tubus, usprawniony układ optyczny oraz poprawiona ergonomia mają sprawić, że nowy Canon EF 35 mm f/1.4L II USM podbije serce niejednego fotografa. Jako oczywisty punkt odniesienia dla nowego szkła w teście pojawi się jego legendarny już poprzednik.
NHVZIF.
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    • canon ef 35mm f 1.4 l usm test