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Canon EF 24-70milimet f/2.8 USM L II - Full Format đánh giá / Test Report
Lens Đánh Giá - Canon EOS (Full Format)



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reviews by Klaus Schroiff, published September 2012IntroductionThe Canon EF 24-70milimet f/2.8 USM L (I) was a bit of a nightmare for us here at vtvplus.vn. We experienced centering defects in several tested samples và up to lớn a degree where we almost considered it khổng lồ be enough. Now the new Canon EF 24-70milimet f/2.8 USM L II has entered the market and according to lớn the Canon press release things look a little more promising in this respect: "The mechanical structure of the lens has been improved to offer enhanced zoom durability và greater shake và shock resistance within the lens barrel". Good và I can positively report that the tested sample had a decent centering quality this time.The Canon EF 24-70mm f/2.8 USM L II is certainly one of the more mainstream professional grade lensesin the Canon line up và it surely continues the sales success story of its predecessor. On full format DSLRs it"s a fast standard zoom lens covering everything from moderate ultra-wide angles up khổng lồ short tele settings. Unfortunately Canon felt the need to lớn increase the price substantially with a current street price beyond 2100EUR. As such it is the most expensive sầu standard zoom lens amuốn the conventional DSLR manufacturers.
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The build unique of this lens is exceptional thanks khổng lồ a tightly assembled combination of metal và - mostly - high chất lượng plastic parts. Both zoom and focus ring operate smoothly. The lens is designed khổng lồ survive sầu in harsh conditions due to sealings against dust & moisture. The weight has been substantially reduced from 950g to lớn now 805g and it"s also 10milimet shorter than its predecessor.The zoom mechanism has also been changed. It has no longer a "reverse" characteristic so the lens is shorthử nghiệm at 24mm và extends towards 70mm. While I prefer this approach from a handling perspective, the petal-shaped lens hood is now much smaller thus less efficient. The front element does not rotate, of course.
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The lens has an internal focusing system driven by a ring-type USM drive sầu offering extremely fast và near-silent AF operations. Typical for modern ring-type USM lenses, full-time manual focusing remains possible in one-shot AF mode.Here’s how its specs compare against its direct predecessor và its more serious rival - the Tamron AF SPhường 24-70mm f/2.8 Di USD VC.
Canon EF 24-70milimet f/2.8 USM LCanon EF 24-70milimet f/2.8 USM L IITamron AF SPhường 24-70mm f/2.8 Di USD VC
Elements/Groups16/1323/1817/12
Special Elements2x aspherical, 1x UD3x aspherical, 2x UD, 1x SUD 3x aspherical, 3x LD, 2xXR
Image Stabilizer Efficiencynonenone4 f-stops
Aperture blades8 (circular)9 (circular)9 (circular)
Min. focus (magnification)0.39m (1:3.4)0.38m (1:4.75)0.38m (1:5)
AF motorultrasonic with FTMultrasonic with FTMultrasonic with FTM
Size83x123mm88x113mm88x117mm
Weight950g805g825g
Filter size77mm82mm82mm
water/dust protectionyesyesyes
approx. Price (EUR)discontinued~2150€~1000€


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