Full-Frame E-mount. As a part of the FE line of lenses, the Sony FE 14mm f/1.8 GM is designed to cover the full-frame sensors on Sony a7- and a9-series cameras. Since it’s an E-mount lens, it’s also fully compatible with APS-C cameras. On an APS-C camera, it’ll give you a focal length equivalent to 21mm.

Pro-Grade Ultra-Wide Prime. The FE 14 GM’s fast f/1.8 aperture and ultra-wide focal length make it perfect for shooting starry skies and other expansive night scenes. At f/1.8, you’ll get dramatic, shallow depth of field and excellent performance in low light.

XD Linear Motor Autofocus System. This internal focusing system provides fast, nearly silent, and highly accurate performance that’s great for still and video use. Two dedicated focus hold buttons and an AF/MF switch help to tailor focusing to your shooting needs. There’s also a manual aperture ring that can be “de-clicked” for smooth aperture adjustment when shooting video.

G-Master Series Quality. The GM series is Sony’s premium lens offering. What sets it apart from other Sony lenses is an emphasis on an extremely high resolving power of fifty lines per mm, out-of-focus “bokeh” quality, and a robust, weather-sealed body.

Advanced Optical Design. The FE 14 GM’s eleven-group/fourteen-element design incorporates two “XA” extreme aspherical elements, one standard aspherical element, and one Super ED element to minimize spherical and chromatic aberrations, and to produce incredibly sharp, high-contrast images. Sony has applied a Nano AR Coating II to each element to help combat surface reflections, flare, and ghosting. The rounded nine-blade aperture produces smooth out-of-focus highlights when you desire a shallow depth of field.