Sony FE 12-24mm F2.8 GM Is the Widest F2.8 Zoom Yet

From PC Mag: Sony is bolstering its mirrorless camera system with a new lens, the FE 12-24mm F2.8 GM. It's a professional-grade zoom with coverage that's squarely ultra-wide, and is the only one of its type to also offer an f/2.8 aperture. It's capable of capturing the same epic views as the FE 12-24mm F4 G, but gathering twice as much light, and, according to Sony, offering better overall optics to boot.

It's a member of the premium G Master line, the company's highest class of lens. Sony touts its excellent edge-to-edge resolution, minimal distortion, and premium build. Wide-angle lenses are a favorite for landscape specialists, and this one is built for use in any weather, and includes fluorine protection to help keep its big front element free of smudges and debris.

At 5.4 by 3.8 inches (HD) and 1.9 pounds, it's a little bit bigger and heavier than the 12-24mm F4 G (4.6 by 3.5 inches, 1.2 pounds), but it also gathers twice the light. It ships with a soft case, a standard rear cap, a slip-on lens cap, and a template to properly size filter gels.

Sony has utilized some rather exotic optical elements to net wide, bright, sharp coverage. The one you'll notice is the Extreme Aspheric (XA) element at the front. It swells out, even more so than with other ultra-wide lenses, to the point where it required a specially developed anti-glare coating, dubbed Nano AR Coating II, as existing materials only worked on flatter surfaces.

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