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Sigma 18-50mm F2.8 DC DN
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Sigma · 18-50 mm · f/2.8 · Canon RF mount

Sigma 18-50mm F2.8 DC DN

Mount
KEY FACTS
BrandSigma
Announcement dateApr 2024
Released2024
Production started2024
Production statusIn Production
What We Like
+Exceptionally compact and lightweight design at only 300g with constant f/2.8 aperture
+Fast and near-silent autofocus with excellent subject tracking thanks to optimized stepping motor
+Versatile 28.8-80mm equivalent focal range ideal for general photography and travel
+Sharp image quality across the frame with advanced optical design and in-camera aberration correction
+Weather-sealed mount with dust and splash-resistant construction for outdoor use
+Close focusing capability (12.1cm minimum at wide end) enables macro-style shots
Worth Knowing
−Significant barrel distortion at wide end, though corrected in-camera for JPEG but visible in RAW
−No built-in image stabilization (though body stabilization compensates on compatible cameras)
−Bokeh quality described as merely acceptable and somewhat raspy at wide open aperture
−Requires in-camera correction for optimal optical performance when shooting RAW

General

Brand
Sigma
Announcement date
ⓘ
Refers to the date the manufacturer publicly announced the upcoming release and general specs of this camera.
Apr 2024
Released
ⓘ
Refers to the year this camera was officially made available for sale.
2024
Production started
2024
Production status
ⓘ
Current status of lens manufacturing (e.g., in production, discontinued).
In Production
Read our notes on general
Sigma's 18-50mm f/2.8 DC DN | C is the company's debut lens for the Canon RF mount. With its constant f/2.8 aperture, fast autofocus and weather sealing, this 29-80mm equivalent zoom virtually gives APS-C shooters a standard trinity lens – one that's about the size of a small tin of soda. Autofocus was fantastic, image quality looks great, and the lens remains very impressive despite its small size. It's a great little general purpose/travel lens, as it affords enough flexibility in the focal length to shoot many scenes, and the constant maximum aperture of F2.8 gives you more flexibility in different lighting situations.

Optics

35mm Equivalent
28.8-80mm (Canon 1.6x crop)
Minimum Aperture
f/22
Lens Construction
10 groups, 13 elements
Special Elements
1 SLD (Special Low Dispersion), 3 aspherical
Min focal length
18 mm
Max focal length
50 mm
Focal range
ⓘ
Shortest to longest focal length of the lens (zoom range start - end )
18-50 mm
Zoom lens
ⓘ
Zoom allows you to vary the focal length, change between long shots and close-ups
Yes
Max aperture wide
2.8
Max aperture zoom
2.8
Autofocus mode
Yes
Blades
ⓘ
Number of diaphragm blades in aperture
7020

Autofocus

AF Speed
High-speed
AF Features
Servo AF, Face/Eye Detection AF, Video AF
AF Noise
Near-silent
Compatibility
Canon Dual Pixel CMOS AF II

Build

Mount Sealing
Rubber-sealed against dust and splashes
Materials
Thermally Stable Composite (TSC) barrel

Optical performance

Angle of View
73.4° (Wide) to 30.0° (Tele)
Minimum Focusing Distance (Wide)
12.1cm (4.8 inches)
Minimum Focusing Distance (Tele)
30cm (11.9 inches)
Maximum Magnification (Wide)
1:2.8
Maximum Magnification (Tele)
1:5
Coating
Super Multi-Layer Coating

Physical

Lens mount
ⓘ
The lens mount will tell you what type of lens range you can fit onto the camera body. Often the same camera company will have different lens ranges for different cameras.
Canon RF
Lens diameter
ⓘ
Width of the lens at its widest point
69.2 mm
Lens length
ⓘ
How long the lens is from front to back.
74.5 mm
Lens weight
300 g
Front filter size
ⓘ
Diameter of attachable filters.
55 mm