Das 20-40mm F/2.8 bietet eine konstante Offenblende von F/2.8 über den gesamten Zoombereich von 20 mm bis 40 mm und ist mit einer Länge von nur 86,5 mm und einem Gewicht von 365 g besonders kompakt und leicht.Flexible zoom range, fast design, and compact profile, the Tamron 70-180mm f/2.8 Di III VXD is a unique take on the ubiquitous and popular telephoto zoom. Tamron 20-40mm F/2.8 Di III VXD Sony E-Mount Hohe Lichtstärke F2.8, kompakte Bauweise und vielseitiges 20-40-mm-Zoom. The Vxd was superseded by the Windows Driver Model (WDM) and is now.

Virtual Device Driver: A virtual device driver (VxD) is a software device driver that emulates hardware and other devices so that multiple applications running in protected mode can access hardware interrupt channels, hardware resources and memory without causing conflicts. The optical construction includes several special lens elements that contribute to the lens's overall superb imaging. The 70-180mm F/2.8 features a compact and lightweight design with a 67mm filter diameter, the same as Tamron's highly esteemed 17-28mm F/2.8 (Model A046) and the 28-75mm F/2.8 (Model A036).

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