The resolution of the glass is ZEISS beyond any doubt, the materials with which these lenses are built are the noblest and this is what makes the quality of the photos taken with them close to perfection, this ZEISS 21mm f2.8 Biogon lens is highly recommended value for money
![]()
Experiment with different angles and form a unique view of the world with this fast super-wide-angle lens.
Biogon T* 2.8/21 ZM
Expand your view of the world.
The Biogon T* 2.8/21 ZM offers exceptional performance and extreme resolving power even when shooting at full aperture, virtually no distortion, excellent control of reflections and stray lights, and excellent contrast performance throughout the entire frame. The slim design of the lens makes it easy to grip and focus, uses a standard filter of 46 mm in diameter, similar to many other ZM lenses and this allows to exchange the filters between lenses. The lens is telemetrically coupled for easy focusing and the optional 21mm viewfinder is available for precise image composition. The Biogon T* 2.8/21 ZM is a wide-angle suitable for many different applications such as reportage work, landscapes and architectural photos.
| Focal length | 21 mm |
| Aperture range | 2.8 – 22 (1/3 steps) |
| Focus range | 0.5 m – ∞ |
| Number of items/groups | 9/7 |
| Macro image ratio | 1 : 21 |
| Macro Coverage | 47 x 71 cm |
| Angular field, diag./horiz./vert. | 90°/80°/58° |
| Filter | M 46 x 0.75 |
| Dimensions (with lids) | ø 53 mm, length 75mm |
| Weight | 280 gr |
You might also like
The resolution of the glass is ZEISS beyond any doubt, the materials with which these lenses are built are the noblest and this is what makes the quality of the photos taken with them close to perfection, this ZEISS 21mm f2.8 Biogon lens is highly recommended value for money
