The Sigma 12mm F1.4 DC | Contemporary is an ultra-wide-angle prime lens that achieves the widest angle of view of 12mm among all F1.4 lenses for APS-C cameras available in the market today.* Featuring the latest optical design, the lens delivers high resolution, capturing vast starry skies and landscapes with exquisite detail from its wide-open aperture. While maintaining uncompromising performance, the compact and lightweight design maximizes the mobility of APS-C cameras, enabling agile shooting. This large-aperture ultra-wide-angle lens seamlessly combines high performance and portability, bringing new perspectives to a wide range of scenes, whether stills and video, including outdoor landscapes, travel, and street photography.
* As an AF-compatible interchangeable lens for APS-C cameras. (As of August 2025, by Sigma)
The widest angle of view of 12mm among F1.4 lenses for APS-C cameras
The world’s first*1 lens to achieve a 12mm focal length with a large F1.4 aperture. The ultra-wide angle of 12mm (equivalent to 18mm,*2 in 35mm format) captures the entire scene in front of you, while the dynamic angle of view and brightness of F1.4 enable highly impressive photography even in low-light conditions, such as nighttime street photography. Additionally, the ultra-wide angle is ideal for group selfies and vlogging. Whether shooting stills or video, the Sigma 12mm F1.4 DC | Contemporary offers high flexibility and diverse possibilities in creative expression.
*1 As an AF-compatible interchangeable lens for APS-C cameras. (As of August 2025, by Sigma)
*2 Equivalent to 19mm for Canon RF Mount.
Outstanding optical performance across the entire image
Three double-sided aspherical lenses and two SLD glass elements are effectively arranged to achieve high optical performance from a wide-open aperture of F1.4. Sagittal coma flare is also well corrected, ensuring clear, crisp images from edge to edge, even in starry night scenes where fine details and sharpness are essential.
Compact and lightweight design for excellent portability
The effective placement of double-sided aspherical elements has resulted in a compact and lightweight design with a total length of 69.4mm and a weight of 225g*, despite its ultra-wide angle and large aperture. This ensures high mobility, making the lens easy to carry around for travel and outdoor scenes. The lens is also compatible with shooting grips and gimbals. Photographers and filmmakers can enjoy the dynamic expression unique to a 12mm F1.4 lens, effortlessly.
* The figure is for Sony E-mount.
Smooth, responsive autofocus powered by a stepping motor
High-speed, high-precision autofocus is achieved by driving a lightweight focus lens with a stepping motor that enables precise control. Whether shooting still images or videos, the Sigma 12mm F1.4 DC | Contemporary captures important moments without missing a beat. In addition to everyday snapshots, the lens delivers high tracking performance in scenes with movement, enabling high-quality video production.
Minimal focus breathing
Focus breathing is suppressed, minimizing changes in the angle of view caused by focus shift and enabling smooth, natural-looking focus pulls when recording video.
Aperture ring with various functions
Equipped with an aperture ring for intuitive control of the aperture. The Canon RF Mount version has a control ring instead of an aperture ring, allowing functions to be assigned to the ring via the camera body.
Designed to minimize flare and ghosting
Using advanced simulation technology, flare and ghosting have been largely eliminated, ensuring that the lens renders rich, high-contrast results in all conditions.
Dust- and splash-resistant structure* / water- and oil-repellent coating
In addition to a dust- and splash-resistant structure*, the frontmost surface of the lens has a water- and oil-repellent coating applied, so that the lens can be used safely even in harsh outdoor environments.
* The product is designed to be dust- and splash-resistant but is not waterproof. When using the lens near water, etc. Take care not to allow large amounts of water to splash on it. If water gets inside the lens, it may cause a major malfunction and render the lens unrepairable.
A comprehensive lineup of F1.4 prime lenses for APS-C mirrorless cameras
The Sigma Contemporary line offers a wide range of F1.4 prime lenses for APS-C cameras. Based on the concept of combining exceptional resolution with a compact, lightweight design, Sigma has achieved a full lineup of F1.4 lenses across key focal lengths ― 16mm, 23mm 30mm, and 56mm and now 12mm. The addition of the Sigma 12mm F1.4 DC | Contemporary further expands the large-aperture lens series, delivering outstanding optical performance, while maintaining the mobility suited to APS-C mirrorless systems.
MTF CHART
The MTF (Modulation Transfer Function) is one of the measurements for evaluating a lens' performance, and it shows how faithfully the contrast of the subject can be reproduced on the image plane. The horizontal axis shows the image height (distance from the center of the image in mm) and the vertical axis shows the contrast value (maximum value is 1).
The closer the 10 line pairs/mm curve is to 1, the higher the contrast and clarity of the lens is, and similarly, the closer the 30 line pairs/mm curve is to 1, the better the resolution and sharpness of the lens is.
*The MTF chart depicts the result at the wide-open aperture.
*For mirrorless lenses that support distortion correction, the horizontal axis shows the image height equivalent to when an L-Mount lens is attached to a Sigma L-Mount camera with distortion correction applied. (The effect of distortion correction may differ depending on the mount and camera used.)
*The spatial frequency indicates the variation on the image plane before distortion correction is performed.
Spatial Frequency
S: Sagittal Line
M: Meridional Line
10lp/mm
30lp/mm
Stepping Motor
The lens is capable of smooth, quiet and high-speed AF made possible by a stepping motor, as well as supports Face/Eye Detection AF and video AF.
Water and oil repellent coating
Incorporates a water and oil-repellent coating that allows water to be wiped away easily and prevents oil and fat from sticking to the surface, even in challenging shooting conditions. At the same time, the maintenance of the lens surface becomes easier.
Aperture ring
Aperture ring, designed to help users work intuitively
Dust and Splash Resistant Structure
This lens features a highly effective dust and splash resistant structure with special sealing at the mount connection, manual focus ring, zoom ring, and cover connection.
* Although this construction allows the lens to be used in light rain, it is not the same as being waterproof, so please prevent large amounts of water from splashing on the lens. It is often impractical to repair the internal mechanism, lens elements and electric components if they are damaged by water.
Mount Conversion Service available
Every single lens undergoes Sigma’s proprietary MTF measuring system
Outdoor photographer Sebastian Mittermeier captures the action of trail running with the new Sigma 12mm F1.4 DC | Contemporary lens. With minimal distortion and excellent sharpness, even at F1.4, it’s a great addition to any APS-C camera kit.
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Photographer Yuri Nanasaki explores the simple beauty of Japan’s Shimane Prefecture in the late spring, along with a surprising companion – the ultra wide-angle Sigma 12mm F1.4 DC | Contemporary lens.
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