DPReview TV has published the review for the Tamron 17-70mm f/2.8 Di III-A VC RXD lens: it is a great all-around zoom lens for Sony APS-C cameras. Tamron hits the sweet spot between price and performance for an everyday zoom lens, but with a few compromises.
The Tamron 17-70mm F2.8 is Tamron’s first high-speed zoom lens for mirrorless cameras with APS-C size sensors. It features a maximum aperture of F2.8 across the entire 4.1x zoom ratio covering a focal length of 17-70mm (a full-frame equivalent of 25.5-105mm) ideal for everyday use, and superb optical performance. It is a small, lightweight lens that is also equipped with Tamron’s VC (Vibration Compensation) mechanism to minimize camera shake.