The Professional's Source Since 1973
  • Help
Ask Our Experts800.606.6969
Hello, Log InAccount & Orders

Join Bild Expo 2025 - Presented by B&H

Video Chat with a Photography Expert - Live

Sigma 18-50mm f/2.8 DC DN Contemporary Lens for Leica L

BH #SI185028DCLM • MFR #585969
Print
Sigma 18-50mm f/2.8 DC DN Contemporary Lens for Leica L
Key Features
  • L-Mount Lens/APS-C Format
  • 27-75mm (35mm Equivalent)
  • Aperture Range: f/2.8 to f/22
  • Minimum Focusing Distance: 4.8"
Ideal for a wide range of photo and video applications including landscapes, portraits, street photography, architecture, and events, the 18-50mm f/2.8 DC DN Contemporary Lens from Sigma is a small, light, and bright standard zoom for crop-sensor mirrorless cameras. Offered here with a Leica L-mount, this lens provides a versatile full-frame equivalent zoom range of 27-75 and a wide constant aperture of f/2.8 throughout the entire zoom range. The lens design includes three high-precision glass-molded aspherical elements coupled with a special low dispersion element. Together they minimize the total number of elements for superb optical quality without excessive weight. Autofocus is exceptionally fast and quiet thanks to the lens's stepping motor, which can be particularly useful when shooting video or fast-moving subjects such as children and animals. An ultimate workhorse, the lens features a minimum focusing distance of just 4.8", enabling it to be used for macro-style close-up photography, and the lens is also outfitted with a rounded seven-blade diaphragm for a pleasing bokeh quality.
More Details
In Stock
Free Expedited Shipping
Protect Your Gear
Add a protection plan from $71.99
Ask an Expert
800.606.6969

Sigma 18-50mm f/2.8 DC DN Contemporary Overview

Ideal for a wide range of photo and video applications including landscapes, portraits, street photography, architecture, and events, the 18-50mm f/2.8 DC DN Contemporary Lens from Sigma is a small, light, and bright standard zoom for crop-sensor mirrorless cameras. Offered here with a Leica L-mount, this lens provides a versatile full-frame equivalent zoom range of 27-75 and a wide constant aperture of f/2.8 throughout the entire zoom range. The lens design includes three high-precision glass-molded aspherical elements coupled with a special low dispersion element. Together they minimize the total number of elements for superb optical quality without excessive weight. Autofocus is exceptionally fast and quiet thanks to the lens's stepping motor, which can be particularly useful when shooting video or fast-moving subjects such as children and animals. An ultimate workhorse, the lens features a minimum focusing distance of just 4.8", enabling it to be used for macro-style close-up photography, and the lens is also outfitted with a rounded seven-blade diaphragm for a pleasing bokeh quality.

Standard zoom lens is designed for APS-C-format Leica L-mount cameras and provides a 35mm equivalent focal length range of 27-75mm.
Constant f/2.8 maximum aperture is well-suited for working in low-light conditions and provides greater control over the focus position when using shallow depth of field techniques.
Three high-precision glass-molded aspherical elements are used to help limit distortion and spherical aberrations and contribute to greater overall sharpness and accurate rendering.
Special Low Dispersion (SLD) element reduces chromatic aberrations and color fringing.
Super Multi-Layer Coating minimizes flare and ghosting for improved contrast and color accuracy when working in strong lighting conditions.
In-camera aberration correction further eliminates optical imperfections such as distortion and vignetting.
Stepping motor with nearly silent autofocus that makes it perfectly suited to a range of photographic applications, including shooting in quiet environments, recording videos, and capturing fast-moving subjects.
Minimum focusing distance of 4.8" and a 1:2.8 maximum magnification ratio benefits working with close-up subjects.
Rounded seven-blade diaphragm contributes to a pleasing bokeh quality.
Compatible with Sigma UD-11 USB Dock for Leica L.
UPC: 085126585693

Sigma 18-50mm f/2.8 DC DN Contemporary Specs

Key Specs
Focal Length
18 to 50mm (35mm Equivalent: 27 to 75mm)
Maximum Aperture
f/2.8
Lens Mount
L-Mount
Lens Format Coverage
APS-C
Focus Type
Autofocus
Image Stabilization
No
Filter Size
55 mm (Front)
Maximum Aperture
f/2.8
Minimum Aperture
f/22
Lens Mount
L-Mount
Lens Format Coverage
APS-C
Angle of View
76.5° to 31.7°
Minimum Focus Distance
4.8" / 12.1 cm
Maximum Magnification
0.36x
Macro Reproduction Ratio
1:2.8
Optical Design
13 Elements in 10 Groups
Diaphragm Blades
7, Rounded
Focus Type
Autofocus
Image Stabilization
No
Filter Size
55 mm (Front)
Dimensions (ø x L)
2.5 x 2.9" / 64.5 x 74.5 mm
Weight
10.2 oz / 290 g
Packaging Info
Package Weight
1.015 lb
Box Dimensions (LxWxH)
5.4 x 4.2 x 4.1"

Sigma 18-50mm f/2.8 DC DN Contemporary Reviews

Great compact lens

By Dave H
Rated 5 out of 5
Date: 2025-05-08

I’m really loving this lens. Much better than kit lens. Great all around lens and yet so compact.

Great lens

By Louis
Rated 5 out of 5
Date: 2025-05-03

We are just finishing up our 3 week trip in Italy and used my Canon R50 with this lens. Our trip over a year ago to Italy was with the R50 and the kit lenses. What a nice step up from the kit lens this Sigma is. Much more versatile with light control and focus as quick as the kit. Italy is great place photos, whether street, architecture or people. It is especially better at night than the kit lens! Had none of the problems other reviewers noted like the lens hood coming loose. Now I still shoot like a tourist does , but get better cleaner results. Time for some lessons!

See any errors on this page?

Will this mount on a Leica SL2?

Will this mount on a Leica SL2?
Asked by: John
The Sigma 18-50mm f/2.8 DC DN Contemporary Lens for Leica L will mount on the Leica SL2 Mirrorless Camera but will not be well suited for it because it is an APS-C lens.
Answered by: Ejona G
Date published: 2024-12-02

Does this lens work with the Panasonic S series?

Does this lens work with the Panasonic S series?
Asked by: Scott
Yes, the Sigma 18-50mm f/2.8 DC DN Contemporary Lens for Leica L is compatible with the Panasonic S series cameras but the camera is full frame and the lens is apsc, so it will crop the full frame sensor. Less than half of the available megapixels will be used.
Answered by: Daniel C
Date published: 2023-07-26

Looking for opinions on AF performance with ...

Looking for opinions on AF performance with either the Lumix S5II or S5IIx? I'm looking to fully utilize PD AF with this lens.
Asked by: Matthew
The Sigma 18-50mm f/2.8 DC DN Contemporary Lens for Leica L is unsuitable for the Panasonic Lumix S5 IIX and S5 II Mirrorless Cameras. The lens is for cropped sensor cameras; both cameras have a full-frame sensor.
Answered by: Elliot
Date published: 2024-05-29

The description mentions this is for Leica L, so ...

The description mentions this is for Leica L, so would this not work for my sony a6400?
Asked by: Jeffrey
The Sigma 18-50mm f/2.8 DC DN Contemporary Lens for Leica L is incompatible with the Sony a6400 Mirrorless Camera. Instead, get the Sigma 18-50mm f/2.8 DC DN Contemporary Lens for Sony E, BH #SI185028DCEM.
Answered by: Lawrence C
Date published: 2024-06-04

Does this lens require slim filters? Will regular ...

Does this lens require slim filters? Will regular filters vignette at 18mm?
Asked by: Kyle
The Sigma 18-50mm f/2.8 DC DN Contemporary Lens for Leica L doesn't require slim filters. Regular filters will not vignette at 18mm.
Answered by: Samik G
Date published: 2023-12-19

Where is this lens made ?

Where is this lens made ?
Asked by: fabio
Sigma's factory in Aizu-Wakamatsu, Fukushima, Japan. It's a lovely region with lakes and scenic volcanoes.
Answered by: Roger
Date published: 2024-10-31

Does this lens work with the R10?

Does this lens work with the R10?
Asked by: Somnath
Yes, the Sigma 18-50 f/2.8 DC DN lens works with the Canon R10.
Answered by: Stephen M
Date published: 2024-11-03

Will this lens' autofocus work with Sony FX30?

Will this lens' autofocus work with Sony FX30?
Asked by: Scott
Yes, the autofocus on the Sigma 18-50mm f/2.8 DC DN Contemporary Lens for Sony E is functional on the Sony FX30.
Answered by: Kirk R
Date published: 2022-12-13
  • y_2025, m_5, d_14, h_7CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_45
  • loc_en_US, sid_1667229, prod, sort_[SortEntry(order=HAS_STAFF_ANSWERS, direction=DESCENDING)]
  • clientName_bhphotovideo
Whatever You Need, We've Got It