Tamron has officially announced the development of 18-300mm f/3.5-6.3 Di III-A VC VXD Lens for Sony E-mount. Price is not available yet, the release date for this lens is expected in Fall 2021.
Tamron today has officially announced the development of FE 17-28mm f/2.8 Di III RXD Lens (B&H Photo Video). This lens will be officially released in middle of 2019. You can get instantly notified when available for pre-order online. (Due to very high demand of this lens as 28-75mm f/2.8 Di III RXD, you’d better pre-order ASAP.)