The Sigma 35mm F1.2 DG DN Art ($1,499) is another big, heavy lens, a continuing design trend in the industry. It backs up its heft with impeccable optics, excellent build quality, and a relatively attractive asking price. If you're willing to deal with its size, it will deliver impeccable shots with an extremely shallow depth of field. But you shouldn't discount good f/1.8 or f/2.8 alternatives, like Sigma's own 45mm F2.8 DG DN Contemporary, which delivers strong optical performance in its own right, in a much smaller, more affordable package. Heavy Optics Required for F1.2 Aperture The Sigma 35mm F1.2 comes in at 5.4 by 3.5 inches (HD) and 2.4 pounds. It's massive for a prime, especially when you consider that you'll be pairing it with a mirrorless camera rather than an SLR. Its front element is big too, requiring 82mm filters. A hood, caps, and carrying case are included. The large size is necessitated by the aperture. At f/1.2 it captures about 50 percent more light than an...
You might not like the bulk, but you won't find many faults with the optics inside Sigma's 35mm F1.2 DG DN Art lens.
Outstanding optics; Bright f/1.2 design; Full-frame coverage; Available for Sony and L-mount systems; Declickable aperture ring; Dust, splash, and fluorine protection
Big and heavy; Audible focus motor