Quick answer
The Zeiss Distagon T* 2.8/21 ZK is a ultra-wide prime lens covering 21mm at f/2.8 for the Sony E mount. Its bright maximum aperture handles indoor and evening light reasonably well.
About this lens
Zeiss Distagon T* 2.8/21 ZK: a wide-angle prime lens with a 21mm focal length and a maximum aperture of f/2.8, made for Sony E mount cameras. The wide view suits landscapes, architecture and environmental shots.
Zeiss Distagon T* 2.8/21 ZK specifications
What can you shoot with the Zeiss Distagon T* 2.8/21 ZK?
At 21mm this is a ultra-wide prime, which typically suits:
- Landscapes and big skies
- Architecture and interiors
- Astrophotography and night skies
Its bright maximum aperture handles indoor and evening light reasonably well.
Full-frame equivalent and field of view
Calculated from the focal length and crop factor. Not measured.
| Sensor | Crop | Equivalent | Horizontal FOV | Diagonal FOV |
|---|---|---|---|---|
| Full frame | 1.0x | 21mm | 81.2° | 91.7° |
| APS-C | 1.5x | 32mm | 59.5° | 69° |
Frequently asked questions
What mount does the Zeiss Distagon T* 2.8/21 ZK use?
It uses the Sony E mount, so it fits Sony E cameras directly.
What is the focal length of the Zeiss Distagon T* 2.8/21 ZK?
It is a fixed 21mm lens with a maximum aperture of f/2.8. That makes it a ultra-wide lens.
Is the Zeiss Distagon T* 2.8/21 ZK a prime or a zoom lens?
It is a prime lens with a fixed 21mm focal length. Primes usually open wider than zooms; this one opens to f/2.8.
What is the Zeiss Distagon T* 2.8/21 ZK equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 32mm on full frame, with a 59.5° horizontal and 69° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Zeiss Distagon T* 2.8/21 ZK fit?
Any Sony E-mount camera, including Sony A1, Sony A3000, Sony A5000, Sony A5100, and Sony A6000 and 28 more.
Alternatives for Sony E from other brands
All Sony E lensesSame mount, overlapping focal range, closest maximum aperture first.
