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Our stock is strategically distributed across multiple warehouses to ensure swift processing and delivery. For urgent click and collect where products are showing in stock, please call us at 01442 292929 or email sales@proav.co.uk to check for availability.
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This classic, wide-angle focal length with a moderate perspective complements the standard 50 mm focal length and is an ideal tool for documenting your travels.
The ZEISS Biogon T* 2,8/28 ZM exhibits crisp detail without distortion at full apertures, even at the close-focus range. The optical construction minimizes flare, enabling photography against a strong backlight without compromising image quality. This lens has the widest angle of view that can be used with the integrated viewfinder on the Zeiss Ikon rangefinder camera, an additional 25/28 mm viewfinder is available. The Biogon T* 2,8/28 ZM is ideal for travel photography and is also well-suited for group and interior photographs when space is at a premium and wide-angle distortion needs to be minimized.
Excellent image quality
The range of ZEISS T*® 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.
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.
Ideal aperture properties
Photographers want to guide the observer through the image. Minimal depth of focus is often used as a design element. This keeps the background intentionally blurred to keep the attention of the observer on the main subject. The ZM lenses feature ten aperture blades. The almost circular aperture helps to create a particularly harmonious effect in the out-of-focus areas of the picture (bokeh).
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.
Robust design
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.
Performance | |
---|---|
Focal Length | 28 mm |
Aperture | f/2.8 – f/22 |
Camera Mount | Leica M-Mount* (ZM) |
Format Compatibility | Full Frame |
Focusing Range | 0,50 m (19.69") – ∞ |
Free Working Distance | - |
Angular field** (diag. horiz. vert.) | 75° | 65° | 46° |
Diameter of image field | - |
Coverage at close range (MOD)** |
370 x 550 mm (14.57 x 21.65") |
Image ratio at minimum object distance |
1 : 16 |
Lens elements | groups |
8 | 6 |
Flange Focal Distance |
- |
Entrance pupil position (front of image plane) |
- |
Physical | |
Filter Thread | M46 x 0.75 |
Rotation Angle of Focusing Ring | - |
Diameter Max. | - |
Diameter of focusing ring | - |
Length (with lens caps) | - |
Length (without lens caps) | 51 mm (2.00") |
Weight | 220 g (7.77 oz) |