Sony 17-28 F.2.8 E Mount Full Frame Constant Lens

The Tamron 17-28mm F/2.8 Di III RXD is a fast, compact wide-angle zoom lens designed specifically for Sony Mirrorless full-frame cameras. Constructed so it weighs just 420g and measures less than 100mm in length, the lens barrel dsn't extend when focusing or zooming, ensuring perfect balance. High-speed and high-accuracy focus is achieved thanks to Tamron's Rapid eXtra-silent stepping Drive (RXD) focussing system which is also silent, making it ideal for both photography and videography.