In twilight or in sparsely lit rooms, this top lens shows off its superior performance even at a fully open aperture of f/1.4. And thanks to the superbly leveled image field, it delivers uniform sharpness and contrast right into the corners of the image. Last but not least, the precise manual focus lets you set the subject accents yourself, giving your images a signature of their own. Manual adjustment of the lens is tantamount to controlling the image results "from your fingertips". Ergonomic design is everything. The focusing ring on Zeiss lenses is ideal for fast, precise lens adjustment thanks to ease of use and ergonomic finger rest. Changes are immediately visible in the viewfinder. The high-quality focusing mechanism moves smoothly and without play, so that intuitive interplay with the image plane is also supported. The mount and control elements of the ZM lenses are made of metal and designed for decades of intensive use. Zeiss T lenses offer the highest possible level of performance, reliability and, of course, image quality. For example, extremely advanced stray light reduction is available, for razor-sharp and brilliant images. And the virtually non-existent geometric distortion ensures precise, accurate reproduction of shapes. Which is particularly useful in product and architectural photography. All lens surfaces of Zeiss lenses are equipped with the T Anti Reflex coating and an optical design that produces brilliant images even in unfavorable lighting conditions.