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Contax Contax/Yashica mount Wide-angle prime

Contax Zeiss 25mm f/2.8 Distagon T*

Quick answer

The Contax Zeiss 25mm f/2.8 Distagon T* is a wide-angle prime lens covering 25mm at f/2.8 for the Contax/Yashica mount. Its bright maximum aperture handles indoor and evening light reasonably well.

  • Full frame
  • APS-C (38mm equiv.)
  • Micro Four Thirds (50mm equiv.)
  • Other systems via mount adapter
Focal
25mm
Aperture
f/2.8–22
Weight
360g
Filter
55mm
Min focus
0.25m
AF motor
None

What 25mm sees

Full frame crop 1.0×
81.7° 71.5° horizontal
APS-C crop 1.5× → 38mm
60° 51.3° horizontal
Micro Four Thirds crop 2.0× → 50mm
46.8° 39.6° horizontal

Diagonal angle of view. Frames drawn to scale at 25mm. Calculated from the focal length and crop factor (adapted mount, so sensor size depends on your camera), not measured.

Open the field-of-view calculator

Contax Zeiss 25mm f/2.8 Distagon T* specifications

Optics

Focal length
25mm
Maximum aperture
f/2.8
Minimum aperture
f/22
Format coverage
Full frame
Optical construction
8 elements in 7 groups

Focus

Autofocus motor
None
Minimum focus distance
0.25 m

Physical

Filter thread
55 mm
Weight
360 g
Length
56 mm
Diameter
62.5 mm

General

Brand
Contax
Lens type
Prime

Specification source: en.wikipedia.org

What can you shoot with the Contax Zeiss 25mm f/2.8 Distagon T*?

At 25mm 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 25mm f/2.8 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 25mm f/2.8 Distagon T*?

It is a fixed 25mm lens with a maximum aperture of f/2.8. That makes it a wide-angle lens.

Is the Contax Zeiss 25mm f/2.8 Distagon T* a prime or a zoom lens?

It is a prime lens with a fixed 25mm focal length. Primes usually open wider than zooms; this one opens to f/2.8.

What is the Contax Zeiss 25mm f/2.8 Distagon T* equivalent on a crop sensor?

On APS-C (1.5x crop) it frames like 38mm on full frame, with a 51.3° horizontal and 60° diagonal field of view. On Micro Four Thirds (2x crop) it frames like 50mm on full frame, with a 39.6° horizontal and 46.8° diagonal field of view. These figures are calculated from the focal length and crop factor.