The ZEISS T* anti-reflective coating on all optical surfaces guarantees images of superior brilliance, even in unfavorable lighting conditions. ZEISS lenses offer virtually distortion-free optics, opening up new composition possibilities. Distortion, which would disrupt the composition by curving straight lines not passing through the image center, is compensated through elaborate optical designs at all focal lengths. ZEISS lenses offer the highest possible standards in performance, reliability, and image quality. They feature advanced flare control for crisp, brilliant images and virtually zero geometric distortion, ensuring precise accuracy when reproducing shapes, which is especially useful for product and architecture photography. Richly saturated and vivid colors are essential for lasting impressions. Stray light within an optical system can lighten the image, particularly in shadows, reducing contrast and resulting in faded exposures. ZEISS combines various specially developed technologies to minimize stray light. ZEISS T* ZM-mount lenses are designed to minimize focus shift with aperture changes, a significant benefit for rangefinder photography. This results in improved accuracy of rangefinder-defined focus. The precise 10-blade aperture with 1/3 stop interval click stops ensures exact exposure. The Zeiss 35mm f2 T* Biogon ZM lens is the fastest in the Biogon family, with an f2.0 aperture and 10 aperture blades for soft, smooth bokeh. This multi-coated, high-quality lens is a compact wide-angle lens suitable for portraits and events. Its lightweight yet robust construction makes it ideal for travel and handheld photography in low lighting. It is incredibly sharp with little to no distortion and offers smooth, precise focusing, making it a favorite among photojournalists.