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Lente sigma 24 70 2.8 nikon3/2/2024 ![]() However, the effectiveness of panning stabilization was a little better than in the Tamron lens. The optical stabilizer gave an effectiveness of up to four stops in our tests, matching the performance of the latest equivalent Nikon lens, beating the newest Mk III Canon, but falling slightly behind the Tamron G2 for static subjects. PerformanceĪutofocus is as fast, accurate and quiet as you’d hope for in the latest, top-notch 70-200mm f/2.8 lenses. Weighing in at 1,805g, it’s around 300g heavier than most current competitors. The lens itself is one of the biggest and heaviest in its class, being 94.2mm in diameter with an oversized 82mm filter thread, rather than the more usual 77mm. However, the mounting ring itself is not removeable and its stub protrudes by about 12mm (half an inch) from the circumference of the barrel, even when the foot is removed. An allen key for removing the foot is supplied with the lens, along with two spare allen screws. This operates smoothly with click-stops at 90-degree intervals, and an Arca-Swiss compatible foot is secured to it with four allen screws. Just behind the bank of switches, there’s a tripod mounting collar. We’d also expected to be able to customize the Focus Hold buttons, for example so that they initiated autofocus instead, but the button setting was greyed out in the Optimization Pro software. Autofocus speed itself can be switched to fast, standard or ‘smooth’ speeds, and you can change the distance at which the autofocus limiter operates.Īnd getting back to stabilization, you can change the standard setting for either Dynamic View mode, which makes the effect of stabilization more clearly visible in the viewfinder, or Moderate View mode, which lessens it. ![]() Next, you can select the sensitivity for engaging full-time manual override when the focus ring is twisted. In this case, customisable options include the ability to fine-tune autofocus accuracy through a range of four different zoom settings, each through a progression of four distances from the closest focus position to infinity. As with other Sigma ‘Global Vision’ lenses, this one is compatible with Sigma’s optional USB Dock, for applying firmware updates and customization.
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