CameraReview
Sigma 12mm F1.4 DC Contemporary
UNSCORED
Sigma · 12 mm · f/1.4 · Sony E, Fujifilm X, Canon RF mount

Sigma 12mm F1.4 DC Contemporary

From $579 — 1 offer
KEY FACTS
BrandSigma
Announcement dateAug 2025
Released2025
Production started2025
Production statusIn Production
What We Like
+Ultra-wide 12mm focal length is world's first F1.4 prime for APS-C at this focal length, ideal for landscapes, astrophotography, and vlogging
+Exceptionally compact and lightweight at 225-250g, making it highly portable for travel and outdoor use
+F1.4 aperture enables impressive low-light performance and low ISO capability in challenging lighting conditions
+First Sigma APS-C Contemporary prime with aperture ring, providing manual control and professional feel similar to Art series
+Minimal focus breathing and suppressed flare/ghosting deliver smooth video pulls and clean images in all conditions
+Quality construction includes dust and splash resistance with premium Thermally Stable Composite exterior
Worth Knowing
Barrel distortion is noticeable, though correctable in post-processing and typical for ultra-wide lenses
Softer corner performance at F1.4, though improves significantly when stopped down to F2 and beyond
No AF/MF switch means manual focus must be engaged through camera menus
Moderate vignetting at F1.4 aperture, though controlled better than competing lenses

General

Brand
Sigma
Announcement date
Refers to the date the manufacturer publicly announced the upcoming release and general specs of this camera.
Aug 2025
Released
Refers to the year this camera was officially made available for sale.
2025
Production started
2025
Production status
Current status of lens manufacturing (e.g., in production, discontinued).
In Production
Read our notes on general
The Sigma 12mm F1.4 DC Contemporary is the world's first lens to achieve a 12mm focal length with F1.4 aperture for APS-C cameras, capturing an ultra-wide 18mm-equivalent field of view ideal for nighttime and landscape photography. Its compact 69.4mm length and 225g weight provide excellent portability while introducing an aperture ring—a first for Sigma's Contemporary prime series. Praised for optical performance and compact design, the lens features minor trade-offs like barrel distortion and softer corners, yet competes well against other offerings.

Optical

Minimum Aperture
F16
Lens Elements
14 elements in 12 groups
Special Elements
3 double-sided aspherical lenses, 2 SLD glass elements
Maximum Magnification
0.12x
Angle of View
96.4 degrees (APS-C), 18mm equivalent (35mm format)

Build design

Lens Type
Prime, Ultra-wide angle, APS-C
Exterior Material
TSC (Thermally Stable Composite polycarbonate)

Autofocus controls

Autofocus Type
Stepping motor, internal AF
Autofocus Speed
High-speed, high-precision
Focus Breathing
Suppressed
Aperture Control
Aperture ring (Sony E and Fujifilm X mounts); Control ring (Canon RF mount)
Focus Ring
Large, strongly ribbed rubber, 260° rotation

Included accessories

Hood
Petal-shaped Sigma lens hood
Caps
Front and rear lens caps
Pouch
Lens pouch

Optics

Min focal length
12 mm
Max focal length
12 mm
Focal range
Shortest to longest focal length of the lens (zoom range start - end )
12 mm
Zoom lens
Zoom allows you to vary the focal length, change between long shots and close-ups
No
Max aperture wide
1.4
Max aperture zoom
1.4
Closest focusing distance
Minimum distance for a subject to be in focus.
17.2 cm01500
Autofocus mode
Yes

Physical

Lens mount
The lens mount will tell you what type of lens range you can fit onto the camera body. Often the same camera company will have different lens ranges for different cameras.
Sony E, Fujifilm X, Canon RF
Lens length
How long the lens is from front to back.
69.4 mm
Lens diameter
Width of the lens at its widest point
69 mm
Lens weight
250 g
Front filter size
Diameter of attachable filters.
62 mm

Features

Weather sealing
Weather sealing capabilities will give you more confidence when shooting in unfavourable conditions.
Yes