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Sigma 23mm F1.4 DC DN Contemporary Lens for Mirrorless Cameras, Canon EF-M & RF-Mount

SIGMA

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SIG348972

$659.00

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Key Features

Large f/1.4 aperture: Exceptional low-light performance and subject separation.
Compact, lightweight body: Easy all-day carry for travel and street work.
Advanced optics: 13 elements in 10 groups, 3 SLD and 2 aspherical elements for sharpness.
9 rounded diaphragm blades: Smooth, pleasing bokeh for portraits and backgrounds.
Fast, quiet AF: Internal stepping motor optimized for stills and video.
Durable mount: Brass bayonet and dust/splash-resistant construction for everyday use.

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Sigma 23mm F1.4 DC DN Contemporary Lens for Mirrorless Cameras, Canon EF-M & RF-Mount Overview

Description

The SIGMA 23 mm f/1.4 DC DN Contemporary for Canon RF is a compact, wide-angle prime built for APS-C mirrorless shooters who demand large-aperture performance without bulk. With a bright f/1.4 maximum aperture, advanced optical design including SLD and aspherical elements, and a rounded nine-blade diaphragm, this lens delivers sharp images, smooth bokeh, and reliable low-light capability for street, travel, and environmental portrait work.

Lightweight at approximately 345 g and optimized for modern mirrorless AF systems, the 23 mm f/1.4 balances handheld usability and image quality. It is available across multiple mounts, ships with a compact hood and caps, and pairs especially well with bodies that offer in-body stabilization to compensate for the lens's lack of optical stabilization.

Applications

Street photography / walkaround: 35mm-equivalent field of view for APS-C, ideal for contextual shots and candid portraiture.
Environmental portraits: Wide enough to include background context while creating subject separation at f/1.4.
Travel & documentary: Compact size and strong optics make it an everyday carry lens for trips and storytelling.

Why Choose This Lens

The SIGMA 23 mm f/1.4 Contemporary delivers f/1.4 brightness and high-resolution optics in a compact package, offering a premium wide-prime experience for APS-C mirrorless users at a competitive price. Its optical formula with SLD and aspherical elements reduces aberrations and boosts micro-contrast, while the nine-blade diaphragm produces attractive bokeh. Choose this lens when you want pro-level aperture performance without carrying a large, heavy prime.

Specifications

Focal Length	23 mm
Maximum Aperture	f/1.4
Minimum Aperture	f/16
Mount	Canon RF (this variant)
Sensor Format Coverage	APS-C
Lens Construction	13 elements in 10 groups (3 SLD, 2 aspherical)
Diaphragm Blades	9, rounded
Minimum Focus Distance	25 cm / 9.8 in
Maximum Magnification	0.14 (1:7.3)
Angle of View	63.4 (APS-C)
Filter Thread	52 mm
Dimensions (Diameter Length)	f69.0 mm 76.9 mm
Weight	345 g / 12.2 oz
Included Items	Lens Hood LH554-01, Front Cap LCF-52 III, Rear Cap LCR II

Brand	SIGMA
Manufacturer SKU	348972
UPC	085126348724

What’s included

1- 23mm F1.4 DC DN Contemporary Lens, Canon EF-Mount and RF-Mount
1- Lens Hood
1- Sigma LCF-52 III 52mm Lens Cap
1- Rear Lens Cap

Compatibility

Canon RF Mount Cameras (APS-C)	Sony E Mount Cameras (APS-C)	Fujifilm X Mount Cameras	L-Mount Cameras (APS-C)	52 mm Filters
Lens Hood LH554-01	Front Cap LCF-52 III	Rear Cap LCR II

FAQ

Is the Sigma 23mm f/1.4 weather sealed?

A1: The lens features dust- and splash-resistant construction at the mount, but it is not fully weather-sealed for extreme conditions.

What is the 35mm equivalent focal length on APS-C?

A2: On APS-C sensors, the 23 mm field of view is roughly equivalent to a 35 mm lens on full-frame.

Does this lens have image stabilization?

A3: No, the SIGMA 23 mm f/1.4 DC DN does not have optical stabilization; use a camera body with in-body stabilization or faster shutter speeds for handheld low-light shooting.

What filter size does this lens accept?

A4: The front filter thread is 52 mm, compatible with common UV, ND, and polarizing filters.

How close can this lens focus?

A5: Minimum focusing distance is 25 cm (9.8 in), with a maximum magnification of approximately 0.14 (1:7.3).

Is the autofocus suitable for video?

A6: Yes, the inner-focus stepping motor provides fast and quiet autofocus suitable for both stills and video, though performance can vary by camera body.

What comes in the box?

A7: The lens ships with the LH554-01 hood, front cap LCF-52 III, rear cap LCR II, and manufacturer documentation.

How heavy is the lens?

A8: The Canon RF-mount variant weighs approximately 345 grams (12.2 ounces), making it easy to carry all day.

What are the optical construction highlights?

A9: The optical formula uses 13 elements in 10 groups, including three SLD elements and two aspherical elements to suppress aberrations and improve resolution.

Is this lens a good value compared to OEM alternatives?

A10: Yes, the Sigma Contemporary series positions this lens as a competitive option offering f/1.4 performance and solid optics at a price often below comparable OEM primes.