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C Biogon T* 4,5/21 ZM

Take this compact, super wide-angle lens with you everywhere you go and you will be rewarded with spectacular, distortion-free images.

Please note: The production of this lens has been discontinued.

C Biogon T* 4,5/21 ZM

C Biogon T* 4,5/21 ZM

See more. Wherever you go.

C Biogon T* 4,5/21 ZM - See more. Wherever you go.

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    Coffee, Cake & Kit – ZEISS Showcase the NEW LWZ.3 21-100mm

    09/30/2016 - 09/30/2016
    United Kingdom, CVP Fitzrovia, 32-33 Gresse Street, Fitzrovia, London, W1T 1QT

    Digital Splash 16 - Wilkinson Cameras

    10/15/2016 - 10/16/2016
    United Kingdom, Exhibition Centre Liverpool, Kings Dock, Liverpool Waterfront, Liverpool, L3 4FP

    The Cameraworld Show 2016

    10/29/2016 - 10/29/2016
    United Kingdom, Grand Connaught Rooms, London, WC2B 5DA

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    C Biogon T* 4,5/21 ZM

    See more. Wherever you go.

    The C in the C Biogon T* 4,5/21 ZM name stands for both ‘compact’ and ‘classic’, the latter referring to a legendary Zeiss design from 1952. Smaller and lighter than the Biogon T* 2,8/21 ZM, it is ideal for traveling and for photographing unobtrusively in public places. The lens is rangefinder-coupled for easy focusing and the optional 21 mm viewfinder is available for accurate image composition. The C Biogon T* 4,5/21 ZM is an ideal lens for many different wide-angle applications including travel, architecture, landscape and interior photography.

    Please note: The production of this lens has been discontinued.

    Technical specifications:

    Focal length 21 mm
    Aperture range f/4.5 – f/22
    Focusing range 0.5 m – ∞
    Number of elements/groups 8 / 6
    Image ratio at close range 1 : 20
    Coverage at close range 48 x 72 cm
    Angular field, diag./horiz./vert. 90°/80°/58°
    M 46 x 0.75
    Dimensions (with caps) ø 53 mm, length 56 mm
    Weight 210 g

    C Biogon T* 4,5/21 ZM


    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.

    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.

    Excellent image quality

    The ZEISS range of 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. 

    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.

    C Biogon T* 4,5/21 ZM

    Pictures on Flickr

    C Biogon T* 4,5/21 ZM

    Reviews & Awards

    "The Zeiss ZM 21mm f/4.5 C-Biogon is a relatively inexpensive, but strong performer in my brief field shooting..."


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