- Constant f/2.8 maximum aperture through the zoom range
- Dust- and splash-proof design
- For full-frame cameras
Sigma hopes that its new 24-70mm f/2.8 DG HSM OS Art will make you think differently about kit lenses. After all, the kit lens is seen by many as something that is thrown in by camer makers without much thought – it gives most photographers a lens to use, even if it’s not the best lens in the lineup.
Sigma's intent with this lens is to provide a premium all-purpose zoom with excellent optical performance and "beautiful circular bokeh."
As the name indicates, this is part of Sigma’s growing “Art” series. It’s intended for full-frame digital cameras, although it can also be used with camera bodies using APS-C sensors. It will be available in Canon EOS, Nikon F and Sigma SA mounts. It also is compatible with the MC-11 converter, which allows for the Canon or Sigma versions to be used (with full compatibility) with Sony E-mount cameras.
It’s a constant f/2.8 maximum aperture through its zoom range. At f/2.8, it’s faster than most other kit lenses, and the fact that it remains f/2.8 at any focal length sets it apart from its competitors.
The “Art” designation shouldn’t make you think that this is a delicate lens. Sigma describes this as the “flagship” of the Art series and a “workhorse.” The lens uses a metal barrel for durability and is dust- and splash-proof.
The 24-70mm contains 19 elements in 14 groups and includes glass aspherical elements. Nine blades form the aperture.
Sigma says each lens is built by hand in its single factory in single factory in Aizu, Japan, and is then tested before it is shipped.
This is an autofocus lens and uses Sigma’s Optical Stabilization. The lens uses 82mm filters.
Like nearly all of Sigma’s lenses, its firmware can be upgraded via the Sigma USB Dock.
The lens is 3.5 x 4.2 inches (88 x 107.6mm). Sigma hasn’t yet indicated the weight.
The Sigma 24-70mm f/2.8 DG HSM OS Art is expected to begin shipping at the end of June 2017 for US$1,299 and will come with front and rear caps and a petal-shaped lens shade.