【Features】YN16mm F1.8S DA DSM lens for Sony, F1.8 Large Aperture, 10 elements in 8 groups, 58mm Filter diameter, 7pcs Aperture blades, APS-C frame, support Auto Focus (AF) and Manual Focus (MF). | 【E-Mount and APS-C Frame】This 16mm F1.8 lens is YONGNUO's second E-mount APS-C lens for mirrorless cameras, with a focal length of about 24mm (equivalent to 35mm full frame) and a large aperture of F1.8. It is a long-awaited large-aperture wide-angle lens for mirrorless camera users. | 【Compatible with Sony E Mount Mirrorless Cameras】 A7III A7RIII A7SII A7RII A7II A9 A7 A7R A6400 A6500 A6300 A6000 A5100 A5000 | 【Structure】Optical glass with nano-multi-layer coating, Aspherical lenses with low dispersion, Quiet digital stepping motor, Metal bayonet and gold-plated contacts, USB firmware upgrade, Dustproof and waterproof rubber ring on the mount, Petal-shaped lens hood that reduces the impact of lights, Aluminum alloy as body shell. | 【Fn Button】YN-16MM 1.8S lens for Sony equipped Fn custom function key, reasonable settings of the Fn multi-function button can quickly call up a certain function menu or perform a certain shortcut operation, which improves the creative efficiency.