The Zeiss 21mm f/2.8 ZK Distagon T* Lens is a super-wide angle lens designed for high-speed performance and full integration with TTL-exposure metering. It has a minimum focusing distance of 8.6" (0.22 m), and thanks to the Carl Zeiss T * anti reflection coating and its outstanding attenuation of stray light, provides brilliant results under all lighting conditions. It lets you shoot demanding architectural interiors, and is perfect for extreme landscapes, inspiring architecture and demanding interiors.
The "ZK" version is for Pentax K-mount cameras. This lens will fully support Program mode, Aperture Priority, Shutter Priority, and full Manual modes with any K-type camera introduced after 1998 (e.g. PZ, MZ, ZX, and all digital SLR cameras).
| Filter Size | 82mm |
| f/Stop Range | 2.8-22 (1/2 steps) |
| Minimum Focus Distance | 8.6" (0.22 m) |
| Magnification | Not Specified by Manufacturer |
| Angle of View | 90° |
| Groups/Elements | 13/16 |
| Length | 4.3" (109mm) |
| Maximum Diameter | 3.4" (87mm) |
| Weight | 1.3 lb (600g) |