Compatible with All Samsung NX CamerasOur 85mm f/1.4 ED SSA Lens is a portrait-length lens specifically designed for the NX mirrorless cameras. This 85mm lens has a 35mm equivalent focal length of 130.9mm and an ultra-fast maximum aperture of f/1.4. This long-length lens and wide aperture give you substantial room to control depth of field and truly separate your subjects from cluttered backgrounds. A Supersonic Actuator (SSA) provides quick and near-silent auto focusing, ideal for video use or when working in quiet environments. 130.9mm Focal Length (35mm Equivalent)130.9mm focal length (35mm equivalent) is a mid-long lens, ideal for portrait situations. Fast f/1.4 Maximum ApertureFast f/1.4 maximum aperture for low and existing light conditions and creative depth of field applications. i-Function Gives Camera Settings Controli-Function allows you to control many of your camera settings directly from the lens; change exposure settings by simply rotating the lens while holding the i-Function button.