Tamron
The Tamron 20–40mm F/2.8 Di III VXD (model A062S) is a compact, constant‑aperture standard zoom for Sony E‑mount full‑frame mirrorless cameras that is also specified for APS‑C use. The cached Tamron product page emphasises a lightweight, travel‑friendly design — the lens measures about 86.5 mm in length and weighs roughly 365 g — while maintaining a bright F/2.8 over the entire zoom range. Optical design notes on the saved page list LD, GM and hybrid aspherical elements to control aberrations, and the BBAR G2 coating reduces flare; Tamron also highlights a short minimum focus distance (0.17 m at 20 mm) and useful magnification ratios for close‑ups. The VXD linear motor is cited for fast, precise autofocus and the product notes compatibility with TAMRON Lens Utility for fine tuning or firmware updates. The page marks the lens as moisture‑resistant (MR) with multiple seals. Editorial coverage in the cached review supports the product page’s positioning: a versatile, high‑quality ultra‑wide/standard zoom aimed at vloggers, photographers shooting video, and travellers who need a compact, bright zoom.