Sony Zeiss Vario-Tessar T* FE 16-35mm F4 ZA OSS

The Sony Zeiss Vario-Tessar T* FE 16-35mm F4 ZA OSS is a constant maximum aperture wide-angle full-frame (FE) zoom lens for the Sony E-mount, announced by Sony on September 15, 2014.

Though designed for Sony's full frame E-mount cameras, the lens can be used on Sony's APS-C E-mount camera bodies, with an equivalent full-frame field-of-view of 24–52.5mm.

Build quality
The lens has a weather resistant solid all-metal finish with a pair of metal focus and zoom rings. The barrel of the lens telescopes outward from the main lens body as it's zoomed in from 16mm to 35mm.