The Tamron 35mm f/2.8 Di III OSD is a wide angle lens for Sony full-frame mirrorless cameras. It strikes a balance between gorgeous image rendering and superior operation. This lens also supports various camera features offered by certain Sony cameras, such as Fast Hybrid AF and Eye AF, and offers a multitude of advanced functions to ensure a pleasant shooting experience and fantastic results. Capable of Focusing Very Close With a minimum focusing distance of 0.15m and magnification ratio of 1:2, this fixed focal lens offers an enhanced close-focusing that lets get closer to your subject. Lens Construction The lens’ optical design utilizes 9 elements including one molded glass aspherical lens and one LD (Low Dispersion) lens element. Moisture-Resistant Construction The Tamron 35mm f/2.8 comes with a moisture-resistant construction and features a fluorine coating on the front lens surface for easy maintenance and fingerprint removal.