- Distagon with 16 lens elements in 13 groups
- Lens made of special glass with anomalous partial dispersion
- "Floating Elements" design
State-of-the-art camera systems and high-resolution digital image sensors are now demanding more and more performance from the lenses. The Floating Elements Design permits constantly high image performance in the focal plane - from the minimum object distance to infinity. This is accomplished by changing the axial distance between individual lens elements or element groups. The adjustment of the element spacing is coupled to the distance setting so that it always results in the right correction. The mechanical design of the ZEISS Milvus lenses is highly complex and the workmanship must be extremely exact - both specialties of ZEISS.
Focal length | 21 mm |
Aperture range | f/2.8 – f/22 |
Camera mount | Canon EF-Mount* (ZE) | Nikon F-Mount* (ZF.2) |
Format compatibility | Full Frame |
Focusing range | 0,22 m (8.66") - ∞ |
Free working distance | 0,09 m (3.54") - ∞ |
Angular field** (diag. | horiz. | vert.) | 90° / 81° / 59° |
Diameter of image field | 43 mm (1.69") |
Coverage at close range (MOD)** | 120 x 180 mm (4.72 x 7.09") |
Image ratio at minimum object distance | 1 : 5 |
Lens elements | groups | 16 / 13 |
Flange focal distance | ZE: 44 mm (1.73") | ZF.2: 46 mm (1.83") |
Entrance pupil position (front of image plane) | 106 mm (4.17") |
Autofocus | – |
Image Stabilization | – |
Filter thread | M82 x 0.75 |
Rotation angle of focusing ring | 124° |
Diameter max. | ZE: 96 mm (3.76") | ZF.2: 95 mm (3.75") |
Diameter of focusing ring | ZE: 72 mm (2.85") | ZF.2: 69 mm (2.74") |
Length (with lens caps) | ZE: 112 mm (4.40") | ZF.2: 110 mm (4.31") |
Length (without lens caps) | ZE: 95 mm (3.74") | ZF.2: 93 mm (3.64") |
Weight | ZE: 851 g (30.02 oz) | ZF.2: 735 g (25.93 oz) |
*) Canon is a trademark or registered trademark of Canon Inc. and/or other members of the Canon Group. Nikon is a registered trademark of Nikon Corporation. Sony is a registered trademark of Sony Corporation. Fujifilm is a registered trademark of Fujifilm Corporation. Leica is a registered trademark of Leica Microsystems IR GmbH.
**) Referring to 24x36 mm format
***) Referring to APS-C format