CONTEMPORARY
18-50mm F2.8 DC DN
Available mounts
- L-Mount
- Canon RF Mount
- FUJIFILM X Mount
- Sony E-mount
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Camera Type
Mirrorless -
Corresponding Mount
L-Mount,Canon RF Mount,FUJIFILM X Mount,Sony E-mount -
Sensor Format
APS-C [DC] -
Lens Construction
10 groups, 13 elements (1 SLD and 3 aspherical lenses)
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Angle of View
L-Mount：76.5°（W）-31.7°（T）
Canon RF Mount：73.4°（W）-30.0°（T）
FUJIFILM X Mount：76.5°（W）-31.7°（T）
Sony E-mount：76.5°（W）-31.7°（T）
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Number of Diaphragm Blades
7 (rounded diaphragm)
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Minimum Aperture
F22
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Minimum Focusing Distance
12.1（W）-30（T）cm / 4.8（W）-11.9（T）in.
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Maximum Magnification Ratio
1:2.8（W）-1:5（T）
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Filter Size
φ55mm
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Dimensions (Diameter × Length)
L-Mount：φ65.4mm × 74.5mm / φ2.6in. × 2.9in.
Canon RF Mount：φ69.2mm × 74.5mm / φ2.7in. × 2.9in.
FUJIFILM X Mount：φ61.6mm × 76.8mm / φ2.4in. × 3.0in.
Sony E-mount：φ61.6mm × 76.5mm / φ2.4in. × 3.0in.
*The length of a lens is measured from the filter surface to its mount.
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Weight
L-Mount：290g / 10.2oz.
Canon RF Mount：300g / 10.6oz.
FUJIFILM X Mount：285g / 10.1oz.
Sony E-mount：290g / 10.2oz.
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Edition Number
C021
The three-digit code on the surface of the lens is to indicate the year the lens was first released.
(Since it is different from the year of manufacture, the release year and edition number may not match depending on the mount.) -
Supplied Accessories
LENS HOOD LH582-02
FRONT CAP LCF-55mm III
REAR CAP LCR II -
Mount / Product Barcode
L-Mount：00-85126-58569-3
Canon RF Mount：00-85126-58572-3
FUJIFILM X Mount：00-85126-58575-4
Sony E-mount：00-85126-58565-5 -
* L-Mount is a registered trademark of Leica Camera AG.
* Sony E-mount is developed, manufactured and sold based on the specifications of E-mount which was disclosed by Sony Corporation under the license agreement with Sony Corporation.
* Canon RF Mount is developed, manufactured and sold under license from Canon Inc.
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Large F2.8 aperture and superb image quality
The Sigma 18-50mm F2.8 DC DN | Contemporary covers 27mm to 75mm in the 35mm format, and has a wide aperture of F2.8 throughout the entire zoom range. This makes it easy to achieve blurry backgrounds, which is ideal for shooting attractive portraits and close-ups. The bokeh is smooth and attractive so doesn’t distract from the in-focus subject.
The lens’s three high-precision glass-molded aspherical elements coupled with the minimization of the total number of elements yields superb optical quality without excessive weight, and the use of in-camera aberration correction further eliminates optical imperfections such as distortion and vignetting. This has all been made possible by the latest optical design technology at Sigma’s only production base in Aizu, where all Sigma lenses are built. -
Exceptionally compact and lightweight body ideal for mirrorless cameras
The Sigma 18-50mm F2.8 DC DN | Contemporary is remarkably compact, matching the portability of APS-C mirrorless camera bodies. This makes it a perfect workhorse lens that is ideal for general day-to-day use. The lens is currently the smallest and lightest in its class*1, boasting a maximum diameter of φ65.4mm, a length of 74.5mm and weight of 290g*2, yet still maintains a constant aperture of F2.8.
To keep the lens as light as possible, Sigma constructed the body from carefully selected materials. A polycarbonate called Thermally Stable Composite (TSC) was used for the construction of the barrel, which is sleek, robust, and importantly has a thermal conductivity close to that of aluminum. This ensures stable performance and good operability when used in changing temperatures. By deliberately using metal for some of the internal structure, the parts could be much thinner and have a higher rigidity, ensuring the lens can stand up to frequent, heavy use.
*1 As an AF compatible, F2.8 constant aperture zoom lens for APS-C (as of October 2021, by Sigma)
*2 The values are for L-Mount.
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Supports various shooting situations
The Sigma 18-50mm F2.8 DC DN | Contemporary has fast and near-silent AF that makes it perfectly suited to a range of photographic applications, including shooting in quiet environments, recording videos and capturing fast-moving subjects. This has been achieved by using a stepping motor as the AF actuator. Since it is small and lightweight, it can be used flexibly in situations such as handheld shooting, which requires high mobility, gimbal shooting, one-man operation video shooting and vlogging.
Combined with the “Pocketable Full-Frame” Sigma fp, the total weight is only 712g, and it can also be useful as a sub-lens for full-frame cameras (used in crop mode) to keep weight down. The 18-50mm F2.8 DC DN | Contemporary, which combines compactness, light weight, high performance, and large aperture, supports a variety of shooting situations, from introductory single-lens mirrorless cameras to video shooting and combination with full-frame cameras.
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About the minimum focusing distance
With an emphasis on making the lens as versatile as possible in a wide variety of shooting conditions, Sigma designed the lens with a minimum focusing distance of 12.1cm and maximum magnification of 1:2.8*, making it also ideal for close-ups.
*The minimum focusing distance and maximum magnification are both values at the wide end. Remove the lens hood from the lens before use when photographing at the minimum focusing distance at the wide-angle end.
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Examples of the lens used in combination with full-frame cameras in APS-C format
Camera Effective Pixels Approx. 61 MP
Crop Setting : 6.2K crop
（Equivalent to approx.1.5 the focal length of the lens）
Still image Recording Pixels : 6,240 × 4,144
Movie Recording Pixels : 3,840 x 2,160 (UHD 4K)
Camera Effective Pixels Approx. 24.6 MP
Crop Setting : APS-C crop
（Equivalent to approx.1.5 the focal length of the lens)
Still image Recording Pixels : 3,840 × 2,560
Movie Recording Pixels : 3,840 x 2,160 (UHD 4K)
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Lens construction
SLD glass
Aspherical lens
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MTF CHART
DIFFRACTION MTF
DIFFRACTION MTF
GEOMETRICAL MTF
GEOMETRICAL MTF
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Spatial frequency
S:Sagittal Line
M:Meridional Line
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10lp/mm
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30lp/mm
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Lens construction: 13 elements in 10 groups
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Compatible with high-speed autofocus
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Support DMF and AF+MF
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Petal type lens hood（LH582-02）
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Compatible with Sigma USB DOCK UD-11(sold separately / for L-Mount only)
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Designed to minimize flare and ghosting
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Every single lens undergoes Sigma’s proprietary MTF measuring system
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7-blade rounded diaphragm
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High-precision, durable brass bayonet mount
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Camera
SIGMA fp L
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Shutter Speed
1/1250s
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Lens F Number
F2.8
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ISO
100
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Focal Length
18mm
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Photographer
Aya Iwasaki
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Camera
SIGMA fp L
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Shutter Speed
1/250s
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Lens F Number
F4.5
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ISO
100
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Focal Length
50mm
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Photographer
Aya Iwasaki
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Camera
SONY α6600
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Shutter Speed
1/800s
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Lens F Number
F4
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ISO
100
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Focal Length
50mm
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Photographer
Damien Dohmen
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Camera
SONY α6600
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Shutter Speed
1/500s
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Lens F Number
F4
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ISO
100
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Focal Length
50mm
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Photographer
Damien Dohmen
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Camera
SONY α6500
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Shutter Speed
1/200s
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Lens F Number
F2.8
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ISO
250
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Focal Length
28.4mm
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Photographer
Hsu Wu Te
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Camera
SONY α6600
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Shutter Speed
1/1250s
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Lens F Number
F7.1
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ISO
400
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Focal Length
40.5mm
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Photographer
Jim Koepnick
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Camera
SONY α6600
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Shutter Speed
1/250s
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Lens F Number
F5.6
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ISO
500
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Focal Length
50mm
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Photographer
Jim Koepnick
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Camera
SONY α7R IV
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Shutter Speed
1/125s
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Lens F Number
F5
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ISO
640
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Focal Length
25.5mm
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Photographer
Kazuyuki Hagiwara
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Camera
Canon EOS R
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Shutter Speed
1/320s
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Lens F Number
F2.8
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ISO
100
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Focal Length
18mm (28.8mm in the 35mm format)
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Photographer
Etsuko Aimu
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Camera
Canon EOS R
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Shutter Speed
1/2000s
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Lens F Number
F2.8
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ISO
100
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Focal Length
35mm (56mm in the 35mm format）
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Photographer
Etsuko Aimu
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Camera
Canon EOS R
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Shutter Speed
1/4000s
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Lens F Number
F4.5
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ISO
100
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Focal Length
19mm (30.4mm in the 35mm format)
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Photographer
Etsuko Aimu
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Camera
Canon EOS R5
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Shutter Speed
1/1250s
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Lens F Number
F3.5
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ISO
100
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Focal Length
18mm (28.8mm in the 35mm format)
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Photographer
Taichi Kozawa
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Camera
Canon EOS R5
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Shutter Speed
1/800s
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Lens F Number
F7.1
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ISO
100
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Focal Length
50mm (80mm in the 35mm format）
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Photographer
Taichi Kozawa
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Camera
Canon EOS R5
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Shutter Speed
1/166s
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Lens F Number
F2.8
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ISO
400
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Focal Length
50mm (80mm in the 35mm format）
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Photographer
Taichi Kozawa
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Camera
Canon EOS R5
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Shutter Speed
1/1250s
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Lens F Number
F2.8
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ISO
200
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Focal Length
18mm (28.8mm in the 35mm format)
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Photographer
Taichi Kozawa
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Camera
SIGMA fp
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Shutter Speed
1/100s
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Lens F Number
F2.8
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ISO
800
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Focal Length
50mm
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Photographer
Hsu Wu Te
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Camera
SONY α6500
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Shutter Speed
1/400s
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Lens F Number
F5.6
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ISO
200
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Focal Length
18mm
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Photographer
Andrew Stripp
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Camera
SONY α6500
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Shutter Speed
1/125s
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Lens F Number
F8
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ISO
400
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Focal Length
50mm
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Photographer
Andrew Stripp
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Camera
SONY α7R IV
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Shutter Speed
1/100s
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Lens F Number
F2.8
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ISO
100
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Focal Length
50mm
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Photographer
Kazuyuki Hagiwara
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Camera
Canon EOS R
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Shutter Speed
1/4000s
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Lens F Number
F2.8
-
ISO
100
-
Focal Length
50mm (80mm in the 35mm format）
-
Photographer
Etsuko Aimu
-
Camera
Canon EOS R
-
Shutter Speed
1/4000s
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Lens F Number
F2.8
-
ISO
100
-
Focal Length
50mm (80mm in the 35mm format）
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Photographer
Etsuko Aimu
-
Camera
Canon EOS R
-
Shutter Speed
1/2000s
-
Lens F Number
F2.8
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ISO
800
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Focal Length
18mm (28.8mm in the 35mm format)
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Photographer
Etsuko Aimu
Stunning versatility.
A large F2.8 aperture zoom lens that need never leave your camera
This exceptionally small, light and bright standard zoom
for crop-sensor mirrorless cameras is the ultimate workhorse lens.
Sigma’s first APS-C size mirrorless zoom lens has a versatile full-frame equivalent zoom range of 27-75mm, which makes it ideal for a wide range of photo and video applications including landscapes, portraits, street photography, architecture and events. It can also be used for macro-style close-up photography owing to its maximum magnification of 1:2.8*1, which allows a minimum focusing distance of just 12.1cm. In terms of its bright F2.8 aperture, it makes for easier hand-held low-light shooting and provides a shallow depth-of-field for high-impact results.
Autofocus is exceptionally fast and quiet thanks to the stepping motor, which can be particularly useful when shooting video, or fast-moving subjects such as children and animals. The lens’ exceptionally small and light form factor that weighs less than 300g makes it perfect as a first interchangeable lens, and as a sub-lens for full-frame bodies *2, as well as for various shooting situations.
*1 The minimum focusing distance and maximum magnification ratio are both values at the wide end.
*2 Please switch to APS-C crop mode when used on full-frame cameras.
