Sigma 18-50mm f/2.8 DC DN Contemporary Lens (Sony E)

Sigma 18-50mm f/2.8 DC DN Contemporary Lens
Compact, Constant f/2.8 Standard Zoom for Sony E-Mount APS-C Cameras
The Sigma 18-50mm f/2.8 DC DN Contemporary is an exceptionally small, light, and bright standard zoom lens designed specifically for APS-C format Sony E-mount mirrorless cameras. Spanning a highly versatile 27-75mm full-frame equivalent focal length range, this everyday workhorse is an ideal single-lens solution for a wide range of photo and video applications, including sweeping landscapes, intimate portraits, street documentary, architecture, and live events.

By combining a wide, constant f/2.8 aperture with an ultra-portable form factor, this Contemporary-series lens delivers professional-tier low-light capability and shallow depth-of-field control without weighing down your camera rig.

Constant f/2.8 Aperture & Premium Optical Engineering
Constant f/2.8 Maximum Aperture: Maintains its bright f/2.8 exposure profile across the entire zoom track from 18mm to 50mm. This ensures consistent exposure settings while zooming and grants superior control over your focus position when utilizing shallow depth-of-field techniques.

Glass-Molded Aspherical Matrix: Incorporates three high-precision glass-molded aspherical elements to minimize the total component count, keeping the chassis remarkably lightweight while aggressively limiting distortion and spherical aberrations for biting edge-to-edge sharpness.

Special Low Dispersion Glass: Outfitted with an SLD (Special Low Dispersion) element to drastically reduce chromatic aberrations and color fringing, ensuring clean, high-contrast subject rendering.

Super Multi-Layer Coating: Optical layers feature Sigma’s advanced Super Multi-Layer Coating to suppress surface lens flare and internal ghosting, preserving rich tonal contrast and accurate color fidelity when framing shots in harsh, direct lighting.

In-Camera Correction Integration: Built to communicate seamlessly with Sony mirrorless bodies, utilizing native in-camera aberration correction parameters to digitally eliminate residual peripheral distortion and vignetting.

Blazing Autofocus Tracking & Creative Macro Performance
Whisper-Quiet Stepping Motor: Driven by an agile, near-silent stepping AF motor that locks focus rapidly and accurately. This smooth tracking behavior is perfectly suited for video recording, shooting in quiet environments, and keeping up with fast-moving subjects like children or pets.

Impressive 1:2.8 Macro Close-Focusing: Features a remarkable minimum focusing distance of just 4.8 inches (12.1 cm) at the wide end, paired with a 1:2.8 maximum magnification ratio. This close-range capacity lets you step directly up to your subject for dramatic, macro-style close-up photography.

Rounded Seven-Blade Diaphragm: Utilizes a rounded 7-blade aperture layout to deliver a smooth, circular out-of-focus bokeh quality, creating a beautifully soft background fall-off when shooting wide open.

Technical Specifications
Focal Length Range: 18-50mm (27-75mm Full-Frame Equivalent)

Maximum Constant Aperture: f/2.8

Minimum Operational Aperture: f/22

Lens Mount Type: Sony E-Mount (APS-C Mirrorless Optimization)

Filter Thread Diameter Size: 55mm

Lens Optical Layout: 13 Elements configured in 10 Groups

Autofocus Motor Drive: High-Speed Stepping Motor (STM)

Maximum Magnification Ratio: 1:2.8 (At the 18mm wide setting)

Minimum Focusing Distance: 4.8 inches / 12.1 cm (Wide) | 11.8 inches / 30.0 cm (Telephoto)

Aperture Blade Count: 7-Blade Diaphragm (Rounded Layout)

Dimensions (Diameter x Length): Approx. 2.54 x 2.93″ / 64.5 x 74.5 mm

Weight: Approx. 10.2 oz / 290 grams (Incredibly lightweight pocketable profile)