Contax Contax/Yashica mount Ultra-wide prime
Contax Zeiss 18mm f/4 Distagon T*
Quick answer
The Contax Zeiss 18mm f/4 Distagon T* is a ultra-wide prime lens covering 18mm at f/4.0 for the Contax/Yashica mount. Its moderate maximum aperture works best in good light or with a higher ISO.
- Full frame
- APS-C (27mm equiv.)
- Micro Four Thirds (36mm equiv.)
- Other systems via mount adapter
- Focal
- 18mm
- Aperture
- f/4–22
- Weight
- 350g
- Filter
- 86mm
- Min focus
- 0.3m
- AF motor
- None
What 18mm sees
- Full frame crop 1.0×
- 100.5° 90° horizontal
- APS-C crop 1.5× → 27mm
- 77.4° 67.4° horizontal
- Micro Four Thirds crop 2.0× → 36mm
- 62° 53.1° horizontal
Diagonal angle of view. Frames drawn to scale at 18mm. Calculated from the focal length and crop factor (adapted mount, so sensor size depends on your camera), not measured.
Open the field-of-view calculatorContax Zeiss 18mm f/4 Distagon T* specifications
Optics
- Focal length
- 18mm
- Maximum aperture
- f/4.0
- Minimum aperture
- f/22
- Format coverage
- Full frame
- Optical construction
- 10 elements in 9 groups
Focus
- Autofocus motor
- None
- Minimum focus distance
- 0.3 m
Physical
- Filter thread
- 86 mm
- Weight
- 350 g
- Length
- 51.5 mm
- Diameter
- 70 mm
General
- Brand
- Contax
- Mount
- Contax/Yashica
- Lens type
- Prime
Specification source: en.wikipedia.org
What can you shoot with the Contax Zeiss 18mm f/4 Distagon T*?
At 18mm this is a ultra-wide prime, which typically suits:
- Landscapes and big skies
- Architecture and interiors
- Astrophotography and night skies
Its moderate maximum aperture works best in good light or with a higher ISO.
Frequently asked questions
What mount does the Contax Zeiss 18mm f/4 Distagon T* use?
It uses the Contax/Yashica mount, so it fits Contax/Yashica cameras directly and can be used on other systems through a mount adapter.
What is the focal length of the Contax Zeiss 18mm f/4 Distagon T*?
It is a fixed 18mm lens with a maximum aperture of f/4.0. That makes it a ultra-wide lens.
Is the Contax Zeiss 18mm f/4 Distagon T* a prime or a zoom lens?
It is a prime lens with a fixed 18mm focal length. Primes usually open wider than zooms; this one opens to f/4.0.
What is the Contax Zeiss 18mm f/4 Distagon T* equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 27mm on full frame, with a 67.4° horizontal and 77.4° diagonal field of view. On Micro Four Thirds (2x crop) it frames like 36mm on full frame, with a 53.1° horizontal and 62° diagonal field of view. These figures are calculated from the focal length and crop factor.