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Sigma 23mm F1.4 DC DN Contemporary Lens for Mirrorless Cameras, L-Mount, Lightweight
In stock
SKU
SIG348969
$659.00
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Key Features
- Bright f/1.4 aperture: Shoot in low light and achieve subject separation with creamy background blur.
- Advanced optical formula: High resolution and controlled chromatic aberration wide open.
- Compact, lightweight design: Carry all day, ideal for travel and street photography.
- Rounded 9-blade diaphragm: Pleasing out of focus highlights and natural subject isolation.
- Inner focus with stepping motor: Reliable autofocus for stills and quiet video.
- USB Dock compatible: Future proof with firmware updates and focus adjustments.
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Sigma 23mm F1.4 DC DN Contemporary Lens for Mirrorless Cameras, L-Mount, Lightweight Overview
Description
The SIGMA 23mm F1.4 DC DN | Contemporary for L-Mount is a compact, fast wide-angle prime designed for APS-C mirrorless cameras. With a true f/1.4 maximum aperture and a 35mm-equivalent field of view, it balances bright, expressive rendering with a travel friendly 340 g body.
Optical construction uses 13 elements in 10 groups, including three SLD and two aspherical elements, to deliver high resolution and controlled aberrations. The lens supports silent, fast autofocus and firmware updates via Sigma USB Dock compatibility, making it suitable for hybrid stills and video shooters.
The SIGMA 23mm F1.4 DC DN Contemporary, L-Mount version, gives APS-C shooters a lightweight 35mm-equivalent prime with a true f/1.4 aperture for creative low light shooting and shallow depth of field. It pairs a modern optical formula with compact handling, making it a go anywhere lens for street, travel, and documentary work.
Problem
Many fast primes are heavy, expensive, or require stopping down for usable sharpness. Users want a bright, compact lens that stays sharp wide open, autofocuss quietly for video, and remains easy to carry all day.
- I want a 35mm equivalent look on APS-C without heavy gear.
- Fast primes are bulky, I need something I will actually carry.
- Noisy or slow AF ruins video use, I need quiet, accurate focusing.
Solution
The SIGMA 23mm F1.4 DC DN Contemporary solves the trade off between size and speed, putting a true f/1.4 35mm equivalent prime into a compact 340 g package. It couples specialist optical elements with modern coatings and silent AF to deliver reliable results for stills and video, while keeping accessory costs low with a 52 mm filter thread.
Benefits
- Low light performance: Shoot at lower ISOs with faster shutter speeds in ambient light.
- Sharp wide open: High resolution reduces the need to stop down for clarity.
- Carry all day: Compact dimensions make it ideal for travel and street use.
- Hybrid ready: Quiet AF and linear focus behavior support both photo and video workflows.
Applications
- Street and documentary photography
- Low light event and indoor shooting
- Environmental portraiture and travel photography
Why Choose this Lens
- Compact 340 g f/1.4 prime with near-premium optical quality at a lower price point, ideal for APS-C mirrorless shooters who need speed and portability.
Specifications
| Model Name / Number | SIGMA 23mm F1.4 DC DN | Contemporary, L-Mount |
| Lens Type (Prime) | Wide-angle prime for APS-C mirrorless |
| Intended Use | Photography, Video |
| Dimensions (Diameter Length) | 65.8 mm 76.9 mm |
| Weight | 340 g |
| Mount Type | L-Mount (this SKU) |
| Compatible Sensor Size | APS-C (DC) |
| Coverage | APS-C, 35mm equivalent ~35 mm |
| Focal Length | 23 mm |
| Focal Length (35mm Equivalent) | ~35 mm equivalent on APS-C |
| Maximum Aperture | f/1.4 |
| Minimum Aperture | f/16 |
| Aperture Type | 9-blade, rounded diaphragm |
| Optical Construction (Elements / Groups) | 13 elements in 10 groups |
| Special Elements | 3 SLD elements, 2 aspherical elements |
| Coatings | Multi coatings to reduce flare and ghosting |
| Focus Type | Autofocus, internal focus |
| Autofocus Motor Type | Stepping motor |
| Minimum Focus Distance | 25 cm / 9.8 in |
| Maximum Magnification Ratio | 0.14 (1:7.3) |
| Internal Focusing | Yes |
| Filter Thread Size (mm) | 52 mm |
| Compatible Lens Hood Model | LH554-01 (supplied) |
| Firmware Upgradable | Yes, USB Dock UD-11 compatible |
| Brand | SIGMA Corporation |
| Manufacturer SKU | 348969 |
| UPC | 00-85126-34869-4 |
What’s included
- 1- 23mm F1.4 DC DN Contemporary Lens, L-Mount
- 1- Petal Type Lens Hood LH554-01
- 1- Front Cap LCF-52 III
- 1- Rear Cap LCR II
Compatibility
| Leica CL | Sigma fp (crop mode) | PANASONIC L-Mount APS-C bodies | Other L-Mount APS-C bodies | Full-frame L-Mount bodies (use crop mode) |
FAQ
Is this lens weather sealed?
Official materials indicate dust and splash resistant construction on retailer summaries, but full weather sealing specifications are not stated as an IP rating.
Does this lens support firmware updates?
Yes, the lens is compatible with the SIGMA USB DOCK (UD-11) and SIGMA Optimization Pro software for firmware updates and focus adjustments.
What is the 35mm equivalent focal length on APS-C?
On APS-C cameras the 23 mm focal length gives approximately a 35 mm equivalent field of view.
What is the minimum focusing distance?
The minimum focus distance is 25 cm, allowing for close environmental portraits and detail shots.
What filter size does the lens use?
The lens accepts 52 mm screw-on filters.
How many diaphragm blades does the lens have?
It uses a 9-blade rounded diaphragm to produce smooth out of focus highlights.
Is the autofocus quiet enough for video?
Yes, the inner focus system driven by a stepping motor provides fast and quiet autofocus suitable for run and gun video work.
What accessories are included in the box?
The lens ships with a petal type lens hood (LH554-01), front cap (LCF-52 III), and rear cap (LCR II).
How much does the lens weigh?
The L-Mount version weighs approximately 340 g.
Can I use this lens on full-frame L-Mount cameras?
You can mount it on full-frame L-Mount bodies, but it is designed for APS-C coverage and will require crop mode or may vignette on full frame.
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