A compact and weather-resistant option, the Vario-Tessar T* FE 16-35mm f/4 ZA OSS Lens from Sony will satisfy nearly all the wide-angle needs of full-frame E-mount shooters. It also features a constant f/4 aperture for consistent performance and illumination throughout the zoom range. Ensuring optimal image quality, the lens design incorporates five aspherical elements, including one Advanced Aspherical (AA), three extra-low dispersion elements, and the Zeiss T* anti-reflective coating. This combination delivers images that are free from aberrations and flare.