Sigma 18-50mm f/2.8 DC DN Contemporary Lens (Canon RF)

The Sigma 18‑50mm f/2.8 DC DN Contemporary is a compact, bright standard zoom lens designed specifically for APS‑C mirrorless cameras with Canon RF mount. This versatile all‑rounder combines a constant f/2.8 aperture with precision optics and a lightweight build, making it ideal for photographers and videographers who want quality and portability in one package.

 Smooth Zoom Range for All Situations

Flexible Focal Coverage

From 18mm wide‑angle through 50mm short telephoto, this lens covers a very useful range — equivalent to approximately 29–80mm on Canon APS‑C bodies — suitable for everyday shooting, travel, portraits, street scenes, and more.

Constant Bright Aperture

Unlike many kit zooms, the Sigma maintains a constant f/2.8 maximum aperture across the zoom range, offering consistent exposure and strong subject separation in mixed lighting conditions.

Enhanced Image Quality

Advanced Optical Construction

The lens uses 13 optical elements in 10 groups, including a Special Low Dispersion (SLD) element and three aspherical elements to minimise chromatic aberration, distortion, and visual artefacts for clean, sharp results.

Beautiful Background Rendition

A rounded 7‑blade diaphragm yields smooth, pleasantly rendered out‑of‑focus areas, enhancing portraits and subject isolation.

 Built for Travel & Daily Use

Ultra‑Compact & Lightweight

Weighing around 300g, this lens is among the most portable constant‑f/2.8 zooms in its class — perfect for mirrorless shooters who carry their gear everywhere.

Quick, Quiet Autofocus

A built‑in stepping motor provides swift and near‑silent autofocus, which is particularly beneficial when capturing video or fast‑moving subjects.

Close‑Focus Capability

The lens focuses as close as approximately 12.1 cm (wide) to 30 cm (tele), giving respectable close‑up performance with useful magnification for detailed shots.

 Ideal For

• Everyday photography & travel — one lens for multiple scenarios
• Portraits with smooth bokeh
• Street and documentary shooting
• Video content thanks to silent AF
• Learning photographers who want high‑quality zoom flexibility

 Technical Specifications

• Mount: Canon RF (APS‑C format)
• Focal Length: 18–50mm (29–80mm equivalent)
• Maximum Aperture: f/2.8 – f/22
• Lens Construction: 13 elements in 10 groups (1 SLD, 3 aspherical)
• Diaphragm Blades: 7 (rounded for smooth bokeh)
• Minimum Focus Distance: 12.1–30 cm (wide–tele)
• Max Magnification: 1:2.8 (wide) – 1:5 (tele)
• Filter Thread: 55 mm
• Weight: Approx. ~300 g
• Included: Lens hood