This is the first Yongnuo lens for Sony Full-Frame cameras with an E-mount. The construction seems better than the others 85mm F/1.8 from Yongnuo (for Canon and Nikon) which are starting to date. The lens is autofocus, with a stepping motor called DSM (Digital Stepping Motor). Canon calls this motor STM and Nikon AF-P. The lens has been officialized in August 2020, and already available on Chinese dealer websites but not yet in the U.S. The lens hood is included, although basic, it’s always a pleasure. The 85mm f/1.8S DF DSM is an almost direct competitor to the Sony EF 85mm f/1.8 for more than half the price. The USB port will allow you to update the firmware, using a cable and software. You can find the latest firmware on our dedicated page. Specifications of the Sony YN85mm F/1.8: Focal length : 85mm Lens Structure : 8 groups / 9 elements Diaphragme: 7 blades Minimale Aperture : F/16 Mount: E-mount (Sony) Magnification : 0,13X System: DSM (Digital Stepping Motor) Diameter : 58mm Dimensions : 67mm x 88mm Firmware: USB port Weight : 346g