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Contax Contax/Yashica mount Standard prime

Contax Zeiss 50mm f/1.4 Planar T*

Quick answer

The Contax Zeiss 50mm f/1.4 Planar T* is a standard prime lens covering 50mm at f/1.4 for the Contax/Yashica mount. Its very wide maximum aperture suits low light and shallow depth of field with strong background blur.

  • Full frame
  • APS-C (75mm equiv.)
  • Micro Four Thirds (100mm equiv.)
  • Other systems via mount adapter
Focal
50mm
Aperture
f/1.4–16
Weight
275g
Filter
55mm
Min focus
0.45m
AF motor
None

What 50mm sees

Full frame crop 1.0×
46.8° 39.6° horizontal
APS-C crop 1.5× → 75mm
32.2° 27° horizontal
Micro Four Thirds crop 2.0× → 100mm
24.4° 20.4° horizontal

Diagonal angle of view. Frames drawn to scale at 50mm. 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 50mm f/1.4 Planar T* specifications

Optics

Focal length
50mm
Maximum aperture
f/1.4
Minimum aperture
f/16
Format coverage
Full frame
Optical construction
7 elements in 6 groups

Focus

Autofocus motor
None
Minimum focus distance
0.45 m

Physical

Filter thread
55 mm
Weight
275 g
Length
41 mm
Diameter
62.5 mm

General

Brand
Contax
Lens type
Prime

Specification source: en.wikipedia.org

What can you shoot with the Contax Zeiss 50mm f/1.4 Planar T*?

At 50mm this is a standard prime, which typically suits:

  • Everyday and street photography
  • Natural-perspective portraits
  • Documentary and travel work

Its very wide maximum aperture suits low light and shallow depth of field with strong background blur.

Frequently asked questions

What mount does the Contax Zeiss 50mm f/1.4 Planar 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 50mm f/1.4 Planar T*?

It is a fixed 50mm lens with a maximum aperture of f/1.4. That makes it a standard lens.

Is the Contax Zeiss 50mm f/1.4 Planar T* a prime or a zoom lens?

It is a prime lens with a fixed 50mm focal length. Primes usually open wider than zooms; this one opens to f/1.4.

What is the Contax Zeiss 50mm f/1.4 Planar T* equivalent on a crop sensor?

On APS-C (1.5x crop) it frames like 75mm on full frame, with a 27° horizontal and 32.2° diagonal field of view. On Micro Four Thirds (2x crop) it frames like 100mm on full frame, with a 20.4° horizontal and 24.4° diagonal field of view. These figures are calculated from the focal length and crop factor.