Tamron announces the launch of the $799 17-70mm F/2.8 Di III-A VC RXD (Model B070), a high-speed standard zoom lens for Sony E-mount APS-C mirrorless cameras on Jan. 14, 2021. (Due to the current global health crisis, the release date or product supply schedule could change.)
The 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). The small, lightweight lens is also equipped with Tamron’s VC (Vibration Compensation) mechanism to minimize camera shake. This VC mechanism leverages AI technology when shooting video.
The lens features Moisture-Resistant Construction, Fluorine Coating and a Ø67mm filter size – the same as the Tamron series of lenses for full-frame mirrorless cameras. The lens is compatible with many of built-in Sony features, including Fast Hybrid AF and Eye AF.
The 17-70mm F2.8 features Tamron’s proprietary VC mechanism. Additional sophisticated algorithms optimized for this model and a dedicated, independently operating MPU all combine to superbly compensate for vibration. This feature is available when the lens is used with cameras with or without in-body image stabilization.
The 17-70mm F2.8 zoom focuses close, down to 7.5” MOD (Minimum Object Distance). The 15.4” MOD at the 70mm telephoto end ensures good close-range shooting performance allowing photographers to enjoy compelling close-up shots, the company said.
The 17-70mm F2.8 zoom measures 4.7” in length and 74.6mm in maximum diameter and weighs 18.5 oz. The lens also maintains the same small Ø67mm filter size of each lens in the Tamron mirrorless lens line-up.