Full Frame E-mount. As a part of the FE line of lenses, the FE 28 is designed to cover the full-frame sensors on Sony a7-series cameras. Since it’s an E-mount lens, it’s also fully compatible with APS-C NEX cameras.

Wide-Angle Prime. When used on a full-frame camera, this lens provides a wide focal length that’s great for landscape, street, and event photography. With an APS-C sensor camera, you’ll have a semi-wide/normal range focal length of about 42mm. The fast f/2 aperture enables decent low-light shooting.

Internal Focusing. The lens remains the same size while it’s focusing. The non-rotating front element enables this lens to use polarizing filters. The linear focusing motor enables fast, nearly silent autofocus.

Optics. The eight group/nine element optical formula includes three aspherical elements that minimize spherical aberrations, and two extra-low dispersion (ED) elements that combat chromatic aberrations and maximize contrast. The ED elements feature multi-coatings that reduce flare and ghosting.

Optional Conversion Lenses. There are two optional conversion lenses designed specifically for the FE 28mm f/2. First, there’s the Sony 16mm Fisheye Conversion Lens, which provides a 180º field of view while still covering a full-frame sensor. There’s also the Sony 21mm Ultra-Wide Conversion Lens, which widens the field of view to 92º while still covering full-frame sensors. Each of these conversion lenses expands the FE 28mm f/2’s functionality with minimal image degradation.