Marrying traditional handling with a digitally-optimized design, the ZEISS Loxia 35mm f/2 Biogon T* Lens is a prime wide-angle lens for full-frame Sony E-mount mirrorless digital cameras. Its manual focus design has been developed in specific regard for use with electronic viewfinders, and also features a manual aperture ring that can be 'de-clicked' for silent operation best-suited for filmmakers. Utilizing a nearly symmetrical optical layout based on the Biogon concept, this lens incorporates one element made from anomalous partial dispersion glass in order to suppress chromatic aberrations and distortion. Additionally, a ZEISS T* anti-reflective coating has also been applied to individual lens elements to further reduce lens flare and ghosting for consistent image clarity and contrast. Serving as a unique option for the contemporary image-maker, the ZEISS Loxia series of lenses are built for the imaging demands of modern full-frame digital cameras, yet are founded upon conventional manual controls.

The moderate wide-angle perspective pairs well with the f/2 maximum aperture for selective focus control, as well as enhanced performance in low-light conditions. Furthermore, the handling details of the lens have also been enhanced for maximum feedback and precision, including a long 180° focus through, clearly engraved scale markings, and a robust, all-metal construction with weather-resistant lens mount gasket. Additionally, the lens is fitted with an electronic interface that conveys all EXIF data to the camera and can also be configured to automatically activate camera-based focusing aids during use.