Contax 645 mount Standard prime
Contax Zeiss 45mm f/2.8 Distagon T*
Quick answer
The Contax Zeiss 45mm f/2.8 Distagon T* is a standard prime lens covering 45mm at f/2.8 for the Contax 645 mount. Its bright maximum aperture handles indoor and evening light reasonably well.
- Full frame
- APS-C (68mm equiv.)
- Micro Four Thirds (90mm equiv.)
- Other systems via mount adapter
- Focal
- 45mm
- Aperture
- f/2.8–32
- Weight
- 821g
- Filter
- 72mm
- Min focus
- 0.5m
What 45mm sees
- Full frame crop 1.0×
- 51.4° 43.6° horizontal
- APS-C crop 1.5× → 68mm
- 35.5° 29.9° horizontal
- Micro Four Thirds crop 2.0× → 90mm
- 27° 22.6° horizontal
Diagonal angle of view. Frames drawn to scale at 45mm. 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 45mm f/2.8 Distagon T* specifications
Optics
- Focal length
- 45mm
- Maximum aperture
- f/2.8
- Minimum aperture
- f/32
- Format coverage
- Medium format
- Optical construction
- 9 elements in 7 groups
Focus
- Minimum focus distance
- 0.5 m
Physical
- Filter thread
- 72 mm
- Weight
- 821 g
- Length
- 99 mm
- Diameter
- 80 mm
General
- Brand
- Contax
- Mount
- Contax 645
- Lens type
- Prime
Specification source: en.wikipedia.org
What can you shoot with the Contax Zeiss 45mm f/2.8 Distagon T*?
At 45mm this is a standard prime, which typically suits:
- Everyday and street photography
- Natural-perspective portraits
- Documentary and travel work
Its bright maximum aperture handles indoor and evening light reasonably well.
Frequently asked questions
What mount does the Contax Zeiss 45mm f/2.8 Distagon T* use?
It uses the Contax 645 mount, so it fits Contax 645 cameras directly and can be used on other systems through a mount adapter.
What is the focal length of the Contax Zeiss 45mm f/2.8 Distagon T*?
It is a fixed 45mm lens with a maximum aperture of f/2.8. That makes it a standard lens.
Is the Contax Zeiss 45mm f/2.8 Distagon T* a prime or a zoom lens?
It is a prime lens with a fixed 45mm focal length. Primes usually open wider than zooms; this one opens to f/2.8.
What is the Contax Zeiss 45mm f/2.8 Distagon T* equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 68mm on full frame, with a 29.9° horizontal and 35.5° diagonal field of view. On Micro Four Thirds (2x crop) it frames like 90mm on full frame, with a 22.6° horizontal and 27° diagonal field of view. These figures are calculated from the focal length and crop factor.
