Sigma hasn't made headlines recently, but the company's new 24-35mm F2 lens will certainly get your attention. Why? According to the company, it's the first full-frame lens to offer "constant aperture of F2 throughout the zoom range".
The press release on Sigma's website has no mention of availability or pricing, but it's happy to extoll the pros of the 940g lens. (And yes, that's no mistake, the lens weighs nearly a kilogram.)
As Petapixel's Michael Zhang points out, the Sigma 24-35mm F2 DG HSM Art's small zoom range is intentional and meant to cover the "three popular fixed focal length lenses — the 24mm, 28mm and 35mm". In addition, it promises F2 brightness regardless of the zoom level.
Unsurprisingly, the lens will support Canon's EF and Nikon's F mounts, as well as Sigma's own SA.
It won't be mandatory for most photographers, but kudos to Sigma for trying to reduce the number of lenses one has to lug around. Of course, we'll have to see the quality of images it can produce, otherwise its other benefits are kind of moot.