Samsung 16mm f2.4 Ultra Wide Zoom Lens For All NX Models: Technical Information Focal Length: * 16mm Magnification: * 0.12x Aperture Range: * F2.4 Lens Construction: * 7 elements in 6 groups Viewing Angle: * 82.6 degrees Physical Characteristics Dimensions: * 24mm long Weight: * 72g Compatibility: * All Samsung NX models