Zeiss 25mm F2.8 Biogon T* ZM For Leica M
Zeiss 25mm F2.8 Biogon T* ZM For Leica M
The ZEISS Biogon T* 2,8/25 ZM delivers high contrast across the entire image field and is virtually free of distortion at full apertures. With the aperture stopped down, detail is finely rendered with a pleasing three-dimensional quality. The lens is rangefinder-coupled for easy focusing and the optional 25/28 mm viewfinder is available for accurate image composition. The Biogon T* 2,8/25 ZM is a creative tool for scenic portraits, inspiring landscapes and expansive architectural photography.
The Biogon T* 2,8/25 ZM delivers high contrast across the entire image field and is virtually free of distortion at full apertures. With the aperture stopped down, detail is finely rendered with a pleasing three-dimensional quality. The lens is rangefinder-coupled for easy focusing and the optional 25/28 mm viewfinder is available for accurate image composition. Combined with a digital rangefinder camera with a 1.3 crop factor, the lens has an effective focal length of 33 mm. The Biogon T* 2,8/25 ZM is a creative tool for scenic portraits, inspiring landscapes and expansive architectural photography
For more than 50 years now, passionate 35 mm photographers have been embracing the M-mount rangefinder camera system. From the lens designer's perspective, a rangefinder camera offers an exciting advantage over single lens reflex (SLR) cameras: more space. After all, there is no moving reflex mirror and drive mechanism. This allows for a short distance between the last lens element and the film meaning more opportunities for designing of superior lens types, including high performing wide-angle lenses.
A passion ready for the challenge
For our lens designers, the chance to develop the Carl Zeiss family of T* ZM-mount lenses was a dream come true. They were free to follow their passion in pursuit of perfection in lens performance, taking full advantage of our uncompromising symmetric lens designs. The only limitation was to reserve 15 mm in front of the film for the TTL exposure metering, commonplace in M-mount cameras. The result is a complete range of the most advanced M-mount lenses ever made.
Superior in every way
The Carl Zeiss range of T* ZM-mount lenses offers the highest possible standards in terms of performance, reliability and, of course, image quality. Quite simply, they are superior in every way. You can count on highly advanced flare control for crisp and brilliant images, for example. And virtually zero geometric distortion, ensuring precise accuracy when reproducing shapes - especially useful when photographing products and architecture.
Carl Zeiss T* ZM-mount lenses are specifically designed to minimize focus shift with aperture changes - an important innovation with big benefits for rangefinder photography. As a result, you can expect improved accuracy of the rangefinder-defined focus. While the precise 10-blade aperture with 1/3 stop interval click stops ensures exact exposure. For reliable performance, Carl Zeiss T* ZM-mount lenses are designed with a wear resistant filter mount and an extremely accurate rangefinder coupling mechanism.
- Virtually zero geometric distortion for accurate reproduction of object shapes, particularly products and architecture
- Reduces unintended focus shift with aperture variation for improved accuracy of rangefinder defined focus
- Precise 10-blade aperture with 1/3 stop interval click stops ensures exact exposure
- Wear resistant filter mount for long-term reliability in tough conditions
- Highly advanced flare control that ensures crisp, brilliant images
- Extremely accurate rangefinder coupling mechanism ensures optical precision, contributing to superior image quality
The highly sophisticated lenses Distagon T* 2.8/15 ZM and Sonnar T* 2/85 ZM are manufactured at Carl Zeiss, Oberkochen in Germany. Here we have unrivalled experience in designing and manufacturing the most advanced lenses in the photographic world. Examples include exceptionally high performance lenses for semiconductor manufacturing, cinematography and top quality medium format cameras.
|Focal length||25 mm|
|Aperture range||2.8 - 22 (1/3 steps)|
|Focusing range||0,5 m - infinity|
|No. of elements/groups||9/7|
|Image ratio at close range||1 : 18|
|Coverage at close range||43 cm x 65 cm|
|Angular field, diag./horiz./vert.||82/72/52 °|
|Filter||M 46 x 0.75|
|Dimensions (with caps)||ø 53 mm, length 71 mm|