| Attribute | Value |
|---|---|
| Lens Construction | 16 elements in 13 groups, including 4 Anomalous Partial Dispersion elements; Enhanced Zeiss T* anti-reflective coating |
| Diameter | 95.3 mm |
| Diagonal Angle of View | 90.00 degree |
| Diaphragm Blades Type | rounded |
| Aperture | 2.80 - 22.00 f |
| Notes | Available lens mounts: Canon EF (ZE), Nikon F (ZF.2); Weather-sealed construction to protect against dust and moisture; Hood and lens caps included. |
| Filter Size | 82 mm |
| Magnification Ratio | 0.2 x |
| Closest Focus | 0.22 m |
| Focus Details | Manual focus only |
| Length | 92.5 mm |
| Diaphragm Blades | 9 |
| APS Equivalent | 1.5x: 31.5mm; 1.6x: 33.6mm |
| Focal Length | 21.00 mm |
| Image Circle | 35mm |
| Brand | Carl-zeiss |
| Name | Zeiss 21mm f/2.8 Milvus 2.8/21 |
| Weight | 735 g |
| Type | Wide Prime |
| 35mm Equivalent | Add |
| Effective Reduction in Aperture | Add |
| Focal Length Multiplier | Add |
| APS-C Equivalent | Add |
| Zoom System | Add |
| Front Element Rotation | Add |