ZEISS Biogon T* 2,8/25 ZM for Leica Rangefinder Cameras (M-mount), Black
- - Wide-angle - angle of view of 82°
- - Outstanding image quality
- - Exceptional workmanship
- - For digital and analog rangefinder
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ZEISS Biogon T* 2,8/25 ZM
Create a new way to look at things
The spectrum of ZEISS ZM lenses for digital and analogue rangefinder cameras combines advanced lens design and superior-quality materials and workmanship to deliver impressive results. The 12 different lenses cover focal lengths from 15mm to 85mm and a range of specialist and more general uses. All at prices that compare favourably with other rangefinder lenses of this superb quality.
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. The Biogon T* 2,8/25 ZM is a creative tool for scenic portraits, inspiring landscapes and expansive architectural photography.
ZEISS T* anti-reflective coating
The optical elements of ZEISS lenses feature T*® anti-reflective coating on all surfaces and an optical design that guarantees images of superior brilliance at all times, even in unfavourable lighting conditions. We apply the anti-reflective coating to the lens surfaces by the vapour deposition of extremely thin, transparent layers on the glass. In this process, special substances are vaporized with extremely high energy in a high-vacuum environment and are subsequently deposited on the glass surfaces, one after another, as layers with precisely controlled thicknesses to achieve the desired reduction of reflective properties. The first coating techniques were employed by ZEISS as long ago as in the 1930s.
Virtually distortion-free optics
Dramatic perspectives and a view from extraordinary image angles - ZEISS lenses open up new composition possibilities. Distortion would disrupt the composition because straight lines, whose image does not go through the image center, would be reproduced with a curved shape. This annoying effect is accordingly and largely compensated through elaborate optical designs at all focal lengths.
Smooth, precise focusing
Manually focusing a lens means controlling the image result from your fingertips. A good ergonomic design makes all the difference. The user-friendly focusing ring on ZEISS lenses with an ergonomic finger rest is perfect for fast, precise focusing. Changes are immediately visible in the viewfinder. The high-quality focusing mechanism moves smoothly without play, thus also supporting the intuitive interaction with the focal plane.
The mount and control elements of all ZM lenses are made of metal and are designed for decades of intensive use. The high-quality craftsmanship of the all-metal mounts, the easy-to-grip metal focus and aperture ring and the robust front bayonet and filter threads ensure an amazing photographic experience.
Minimized Focus Shift
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.
- Entrance pupil position (in front of image plane):
- Camera mount:
- Leica M
- Aperture range:
- f/2.8 – f/22
- Lens type:
- Focal length:
- 25 mm
- Format Compatibility:
- 35mm Film / Full-Frame Digital Sensor
- Coverage at close range (MOD):
- 430 x 650 mm
- Focusing range:
- 0.5 m – ∞
- Image ratio at MOD:
- Free working distance:
- Diameter of image field:
- Flange focal distance:
- Image Stabilization:
- Filter thread:
- M46 x 0.75
- Diameter max.:
- 53 mm
- 260 g
- Diameter of focusing ring:
- Rotation angle of focusing ring (inf – MOD):
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- - High degree of wearing comfort with Air Cell padding
- - Strap length adjustable at both ends
- - For ZEISS Biogon T* 2,8/25 ZM and Biogon T* 2,8/28 ZM
- - With ZEISS T*® anti-reflective coating
- - Air blower
- - Dust brush
- - Lens cleaning solution (30 ml)
- - Microfibre cloth (18 × 18 cm)
- - 10 moist cleaning wipes
- - High-quality glass
- - ZEISS T* anti-reflective coating
- - Ideal for ZEISS lenses (compatible with non-ZEISS lenses)
- - Can be used with a lens shade
- - Optimal protection and more clarity