Contax G mount Wide-angle prime
Contax Zeiss 28mm f/2.8 Biogon T*
Quick answer
The Contax Zeiss 28mm f/2.8 Biogon T* is a wide-angle prime lens covering 28mm at f/2.8 for the Contax G mount. Its bright maximum aperture handles indoor and evening light reasonably well.
- Full frame
- APS-C (42mm equiv.)
- Micro Four Thirds (56mm equiv.)
- Other systems via mount adapter
- Focal
- 28mm
- Aperture
- f/2.8–22
- Weight
- 150g
- Filter
- 46mm
- Min focus
- 0.5m
What 28mm sees
- Full frame crop 1.0×
- 75.4° 65.5° horizontal
- APS-C crop 1.5× → 42mm
- 54.5° 46.4° horizontal
- Micro Four Thirds crop 2.0× → 56mm
- 42.2° 35.6° horizontal
Diagonal angle of view. Frames drawn to scale at 28mm. 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 28mm f/2.8 Biogon T* specifications
Optics
- Focal length
- 28mm
- Maximum aperture
- f/2.8
- Minimum aperture
- f/22
- Format coverage
- Full frame
- Optical construction
- 7 elements in 5 groups
Focus
- Minimum focus distance
- 0.5 m
Physical
- Filter thread
- 46 mm
- Weight
- 150 g
- Length
- 31 mm
- Diameter
- 56 mm
Specification source: en.wikipedia.org
What can you shoot with the Contax Zeiss 28mm f/2.8 Biogon T*?
At 28mm this is a wide-angle prime, which typically suits:
- Landscapes and cityscapes
- Street and travel photography
- Environmental portraits and interiors
Its bright maximum aperture handles indoor and evening light reasonably well.
Frequently asked questions
What mount does the Contax Zeiss 28mm f/2.8 Biogon T* use?
It uses the Contax G mount, so it fits Contax G cameras directly and can be used on other systems through a mount adapter.
What is the focal length of the Contax Zeiss 28mm f/2.8 Biogon T*?
It is a fixed 28mm lens with a maximum aperture of f/2.8. That makes it a wide-angle lens.
Is the Contax Zeiss 28mm f/2.8 Biogon T* a prime or a zoom lens?
It is a prime lens with a fixed 28mm focal length. Primes usually open wider than zooms; this one opens to f/2.8.
What is the Contax Zeiss 28mm f/2.8 Biogon T* equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 42mm on full frame, with a 46.4° horizontal and 54.5° diagonal field of view. On Micro Four Thirds (2x crop) it frames like 56mm on full frame, with a 35.6° horizontal and 42.2° diagonal field of view. These figures are calculated from the focal length and crop factor.