Sony FE 12-24mm f/2.8 GM Lens

The Sony FE 12-24mm f/2.8 GM Lens is an ultra-wide-angle zoom lens for Sony’s full-frame E-mount mirrorless cameras, holding the distinction of being the widest full-frame zoom made with a constant f/2.8 aperture. Part of Sony’s flagship G Master series, it’s a professional tool well suited to architecture, interiors, landscapes, and astrophotography, where photographers need an exceptionally wide field of view along with a bright, consistent aperture.

Optically, the lens covers a 12-24mm focal range with a constant f/2.8 maximum aperture throughout the zoom, delivering an expansive 122-84 degree angle of view. The 17-element, 14-group optical design includes three XA (extreme aspherical) elements, two Super ED (Extra-low Dispersion) elements, and three standard ED elements, ground to exacting surface precision to control astigmatism, field curvature, coma, distortion, and chromatic aberrations for a high degree of sharpness and accurate rendering. Sony’s Nano AR Coating II, newly developed for this lens, suppresses flare and ghosting even with the large, curved front element, and a rounded 9-blade diaphragm contributes to pleasing bokeh.

Autofocus is handled by four XD (Extreme Dynamic) Linear Motors, two per focus group, driving a floating focus mechanism that keeps aberrations in check from the lens’s 11-inch (28cm) minimum focusing distance all the way to infinity. This internal focus design keeps the lens at a constant 137mm length regardless of focus position, a useful trait for gimbal work and underwater housings. The lens achieves a maximum magnification of 0.14x (1:6.7 at 24mm).

Build quality includes dust- and moisture-resistant construction along with a fluorine coating on the front element to resist water, oil, and other contaminants. An integrated, non-removable petal-shaped hood protects the large front element, which precludes front screw-on filters; a rear gel filter holder is provided instead. The lens measures approximately 97.6mm (3.875 in.) in diameter by 137mm (5.5 in.) in length and weighs approximately 847g, and includes a Focus Hold button along with an AF/MF switch on the barrel.

As a full-frame E-mount lens, the FE 12-24mm f/2.8 GM delivers its full ultra-wide angle of view on Sony full-frame bodies while remaining compatible with Sony APS-C E-mount cameras at an effective 18-36mm equivalent focal range.

Key Features
– 12-24mm constant f/2.8 ultra-wide-angle zoom (G Master) for Sony full-frame E-mount
– Widest full-frame zoom lens with a constant aperture
– 17 elements in 14 groups, including 3 XA elements, 2 Super ED elements, and 3 ED elements
– Nano AR Coating II
– Four XD Linear Motors with floating focus mechanism
– Internal focus design (constant 137mm length)
– Rounded 9-blade diaphragm
– Dust- and moisture-resistant construction with fluorine-coated front element
– Integrated, non-removable petal-shaped lens hood
– Rear gel filter holder (no front filter thread)
– Focus Hold button and AF/MF switch
– Minimum focus distance of 11 in. (28cm); 0.14x maximum magnification
– No image stabilization
– Approximate weight: 847g
– Compatible with Sony full-frame and APS-C E-mount cameras (18-36mm equivalent on APS-C)