The FE 28mm f/2 Lens from Sony is a full-frame compatible wide-angle prime lens for E-Mount mirrorless cameras. Its wide focal length and fast aperture make it a practical and versatile addition to your gear bag. Also compatible with APS-C format E-Mount cameras, it provides the angle-of-view equivalent to a 42mm lens in the 35mm/full-frame format.Its optical design features Extra-low Dispersion glass elements which reduce chromatic aberrations and provide improved contrast. Also, aspherical and advanced aspherical elements minimize spherical aberrations and help to maintain the lens' compact, lightweight form. Multi-coating on the ED glass elements reduce flare and ghosting and also improve overall image contrast and quality.An internal focus system and a linear actuator autofocus mechanism provide fast and quiet focusing and make this lens ideal for both still shooting and video recording. The internal focus system also maintains the compact length of the lens during focus and does not rotate the front element. A uniquely designed 9-blade system creates a circular aperture which helps to create pleasing out-of-focus highlights.The compact design of this lens is a great match for the compact E-Mount cameras and its robust build with dust and moisture resistant seals enable it to be used in less than optimal conditions. It is compatible with Sony's Ultra-wide and Fisheye converter lenses for even wider perspectives.