【Features】 F1.4 Large Aperture, 33mm Focal Length, 11 elements in 9 groups lens construction, 9pcs Aperture Blades, F/16 Minimum Aperture, the closest focusing distance is 0.4m, 58mm filter diameter, maximum diameter and length is approx.φ69×87mm. | 【Compact and Lightweight】The lens adopts the aviation aluminum alloy as the housing main body, and is processed with surface anodic oxidation and sand blasting to make beauty and texture coexist and effectively improves the corrosion and wear resistance at the same time. The overall construction of the lens is compact, the net weight is only about 370g, which is conducive to handheld shooting and video recording for a long time. | 【Fn Function Keys】Equipped with Fn custom function keys, it can quickly call up a function menu or perform a quick operation, which improves the creative efficiency. | 【Structure】Equipped with digital stepping motor (DSM), control ring, Dustproof and Waterproof Rubber Ring, USB Firmware Upgrade, Metal Bayonet, Gold-plated Contacts and 2pcs low dispersion glass lenses. | 【For Sony E-mount】 YONGNUO 33MM F1.4S lens is designed for APS-C-format SONY E-mount mirrorless cameras A5100 A6000 A6100 A6300 A6400 A6500 A6600 NEX-6 A7S A7C A7 A7RⅢ A7SⅢ A7Ⅲ A7RⅡ A7Ⅱ A7S A7RⅣ A79