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Sigma Fujifilm X mount Ultra-wide prime

Sigma 12mm f/1.4 DC Contemporary

Quick answer

The Sigma 12mm f/1.4 DC Contemporary is a ultra-wide prime lens covering 12mm at f/1.4 for the Fujifilm X mount. Its very wide maximum aperture suits low light and shallow depth of field with strong background blur.

Focal
12mm
Aperture
f/1.4–16
Weight
235g
Filter
62mm
Min focus
0.17m
AF motor
Stepping motor

What 12mm sees

APS-C crop 1.5× → 18mm
100.5° 90° horizontal

Diagonal angle of view. Frames drawn to scale at 12mm. Calculated from the focal length and crop factor, not measured.

Open the field-of-view calculator

Sigma 12mm f/1.4 DC Contemporary specifications

Optics

Focal length
12mm
Maximum aperture
f/1.4
Minimum aperture
f/16
Format coverage
APS-C
Optical construction
14 elements in 12 groups
Aperture blades
9

Focus

Autofocus motor
Stepping motor
Minimum focus distance
0.17 m
Maximum magnification
0.12×

Physical

Weather sealing
Yes
Filter thread
62 mm
Weight
235 g
Length
69.7 mm
Diameter
68 mm

General

Brand
Sigma
Mount
Fujifilm X
Lens type
Prime
Released
2025

Specification source: sigma-global.com

What can you shoot with the Sigma 12mm f/1.4 DC Contemporary?

At 12mm this is a ultra-wide prime, which typically suits:

  • Landscapes and big skies
  • Architecture and interiors
  • Astrophotography and night skies

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

Frequently asked questions

What mount does the Sigma 12mm f/1.4 DC Contemporary use?

It uses the Fujifilm X mount, so it fits Fujifilm X cameras directly.

What is the focal length of the Sigma 12mm f/1.4 DC Contemporary?

It is a fixed 12mm lens with a maximum aperture of f/1.4. That makes it a ultra-wide lens.

Is the Sigma 12mm f/1.4 DC Contemporary a prime or a zoom lens?

It is a prime lens with a fixed 12mm focal length. Primes usually open wider than zooms; this one opens to f/1.4.

What is the Sigma 12mm f/1.4 DC Contemporary equivalent on a crop sensor?

On APS-C (1.5x crop) it frames like 18mm on full frame, with a 90° horizontal and 100.5° diagonal field of view. These figures are calculated from the focal length and crop factor.

Which cameras does the Sigma 12mm f/1.4 DC Contemporary fit?

Any Fujifilm X-mount camera, including Fujifilm X-A2, Fujifilm X-A3, Fujifilm X-A5, Fujifilm X-E1, and Fujifilm X-E2 and 31 more.