23mm F1.4 DC DN

SIGMA 23mm F1.4 DC DN C - No Hood - L-Mount

A versatile, crop sensor wide-standard prime

Available in L-Mount, Sony E-mount and FUJIFILM X Mount*, the versatile SIGMA 23mm F1.4 DC DN | Contemporary for APS-C mirrorless is the ideal lens for creative everyday photography. Its F1.4 aperture creates expressive portraits and is handy when available light is limited. Using high quality optics and weighing only 340g, the lens can be mounted on compact mirrorless bodies to create a highly portable camera system without any compromise to image quality.

*Fujifilm X Mount available summer 2023. Date TBD.

A creative focal length with excellent usability

The lens features a wide F2 aperture, able to create true-to-life portraits with beautiful bokeh effects, and with its compact size and weight of 350g, the lens is the perfect photography tool for travel and street photography. Constructed using high-quality SLD and aspherical glass elements, the lens is an excellent upgrade for photography enthusiasts who want to improve the quality of their existing 50mm lens and for professionals who prefer smaller camera systems without compromising on image quality. The glass elements also effectively minimise flare and ghosting in back-lit environments.

Designed exclusively for APS-C mirrorless cameras

The lens has been designed exclusively for APS-C mirrorless cameras, resulting in a compact, lightweight body weighing just 340g*. It also features a quiet, high-speed stepping motor that can lock onto subjects quickly and can be used with AF modes such as focus tracking and eye detection.

Use the large focus ring to fine-tune focus with Dynamic Manual Focus (DMF). The lens also supports switching between non-linear and linear focusing when customised using the SIGMA USB DOCK UD-11 (sold separately / for L-Mount only). It is also compatible with AF assist functions found on compatible cameras (E-mount only).

Ultra-wide aperture perfect for low light

The lens’ F1.4 aperture means a lot of light can pass through the lens. This gives a very shallow depth-of-field for blurry backgrounds, which is ideal for capturing high-impact portraits. It also makes it possible to shoot hand-held in low light conditions without the need for a tripod, as the fast aperture allows for faster shutter speeds.

Expands the range of APS-C format F1.4 prime lenses

With the addition of the 23mm F1.4 DC DN, the SIGMA Contemporary line now has four APS-C format F1.4 prime lenses. Together they work perfectly as a cohesive ultra-wide aperture set, collectively weighing less than 1.5kg. This means users can build a lightweight mirrorless camera system that delivers superb consistency in image quality, colour accuracy and character.


Huang Jian Liang

Jean Noir

Other features

• Lens construction: 13 elements in 10 groups with 3 SLD and 2 aspherical lens elements
• Inner focus system
• Compatible with high-speed autofocus
• Stepping Motor
• Compatible with Lens Aberration Correction
*Function available on supported cameras only. Available corrections may vary depending on the camera model.
• Support DMF and AF+MF
• Compatible with AF assist (Sony E-mount only)
• Super Multi-Layer Coating
• Petal Type Hood LH554-01
• Mount with dust and splash resistant structure
• Support for switching between linear and non-linear focus ring settings (for L-Mount only)
• Compatible with SIGMA USB DOCK UD-11 (sold separately / for L-Mount only)
• Designed to minimise flare and ghosting
• Every single lens undergoes SIGMA’s proprietary MTF measuring system
• 9-blade rounded diaphragm
• High-precision, durable brass bayonet mount
• “Made in Japan” craftsmanship


You'll find our philosophy and craftsmanship in every product

Our lens line-up fully expresses our approach to lenses and photography itself. All of our lenses belong to one of three lines—Contemporary, Art or Sports—all of which share our development philosophy and advanced manufacturing system. High performance, high quality and high end in every respect, these lenses give people who love photography lasting value and consistent, exciting results. The secret is our passion for craftsmanship that we put into every production process and every product.

Evaluation with Sigma's own MTF measuring system “A1”

We used to measure lens performance with MTF measuring system using conventional sensors. However, we’ve now developed our own proprietary MTF (modulation transfer function) measuring system (A1) using 46-megapixel Foveon direct image sensors. Even previously undetectable high-frequency details are now within the scope of our quality control inspections.

* A1: Aizu1

“Made in Japan”

All Sigma’s manufacturing – right down to moulds and parts – with a few exceptions, are carried out under a single integrated production system, entirely in Japan. We are now one of the very few manufacturers whose products are solely “made in Japan”. We like to think our products are somehow imbued with the essence of our homeland, blessed as it is with clean air and water, and focused, hard-working people. We pride ourselves on the authentic quality of Sigma products, born of a marriage between highly attuned expertise and intelligent, advanced technology. Our sophisticated products have satisfied professionals and lovers of photography all over the world because our manufacturing is based on genuine craftsmanship, underpinned by the passion and pride of our experts.

Applicable for the Mount Conversion Service

As an experienced lens manufacturer that has been creating a diverse range of interchangeable lenses, we have started the innovative chargeable service “Mount Conversion Service”. With this service, the mount of your current SIGMA lenses can be changed to another mount of your choice. It gives a new life to your favourite lenses when you wish to use it on a different camera body.

* This “Mount Conversion Service” is different from a normal repair. In order to apply for the service, please contact your nearest authorised subsidiary/distributor of SIGMA.


Lens construction


Angle-of-view 63.4°
Lens Construction 13 elements, 10 groups (3 SLD and 2 aspherical elements)
Number of Diaphragm Blades 9 Blades (Rounded diaphragm)
Minimum Aperture F16
Minimum Focusing Distance 25cm
Maximum Magnification 1:7.3
Filter Size 52mm
Dimensions 65.8mm x 76.9mm
Weight 340g

Corresponding AF Mounts


Barcode No.

L-Mount 00-85126-348694
Sony E-mount 00-85126-348656

A versatile, crop sensor wide-standard prime

Diffraction and Geometrical MTF Charts
23mm F1.4 DC DN | C

A versatile, crop sensor wide-standard prime


Sigma Lens Cap

Front Lens Cap

Protect the front element of your lens with a SIGMA Rear Lens Cap. Helps to prevent dust, scratches and unwanted damage. Supplied with new SIGMA Global Vision lenses* *Excluding some lens variants.

Item No.


LH554-01 Lens Hood for 23mm F1.4 DC DN | Contemporary

Dedicated lens hood for 23mm F1.4 DC DN | Contemporary.

Item No. 348H01


Rear Lens Cap

Protect the rear elements of your lens with a SIGMA Rear Lens Cap. Helps to prevent dust, scratches and unwanted damage to the lens contacts. Supplied with new SIGMA Global Vision lenses* *Excluding some lens variants.

Item No.


Sigma USB Dock UD-11

Designed exclusively for the use with a SIGMA Contemporary, Art, or Sports lens and its accessories, the SIGMA USB DOCK allows users to update firmware and customize settings on lenses in these lineups. As the latest addition to the lineup, the USB DOCK UD-11 is designed for two types of mirrorless camera mounts: the L-Mount …

Item No.


A versatile, crop sensor wide-standard prime