![]() In a sentence, it’s the best APS-C zoom in the world. Anyway it features a full time manual focusing ring and even at the AF setting you can compensate using such ring. With the EOS M (hybrid CMOS focus) that didn’t happen. I didn’t actually miss any photo, as you know my style is very calm, but it definitely slowed things down. ![]() I don’t know what happened during the tests with the EOS 60D that its center point would travel from minimum focus to infinity all the time, for then locking on the right spot. ![]() It is totally silent and very quick, but as usual not as fast as first party lenses (I felt the same thing about the 35mm f/1.4 DG HSM). There’s a single AF switch that controls the HSM system, very similar to Canon’s USM. Smaller coverage than the full frame sensor. “City” with the Canon EOS 5D Mark II + Sigma 18-35mm f/1.8 DC HSM at f/6.3 1/100 ISO400 18mm. It can take the place of a three primes kit (20mm, 24mm and 35mm), but will never work alone, by itself. It can’t replace the most basic kit 18-55mm, and works with a limited subject range. “18-35mm” doesn’t really feel very different, definitely won’t bring your subject much closer. The wide angle is at the right, messing with our stubborn Canon heads. Just a small complaint is the EF model has a reversed zoom direction, the opposite to first party lenses. The rings movements are very smooth and can be used with a single finger, be it the zoom (that is very short) or the focus (very precise). From 18mm to 35mm, nothing expands (different from most APS-C lenses) and the AF group is at the back, keeping the front element still (it accepts ø72mm filters). It is much heavier than any plasticy body, and a major upgrade to most kit lenses.īut it is very easy to use with an all internal zoom mechanism. And at 121mm (length) by 78mm (diameter), it certainly doesn’t behave like a “crop” lens. It’s the most solid 811g “low cost” lens on the market today, years ahead of any Canon EF-S or Nikon DX. With a mix of composite plastics and metals, it just feels high end. With a premium philosophy in mind, catering lens with “high performance materials, precision build and artistic expression” (statement from the press release), the 18-35mm f/1.8DC is by far the best APS-C lens I’ve ever used. The 18-35mm f/1.8 DC HSM is the third “art” lens on what Sigma is calling the “Global Vision” strategy.
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