Sigma 17-40mm F1.8 DC Art Lens Zoom for RF-Mount Cameras

ABOUT SIGMA

Sigma is a globally recognised Japanese manufacturer of camera lenses and imaging equipment, known for precision engineering and optical innovation. The brand develops lenses for a wide range of photographic applications, supporting both professional and enthusiast photographers with high-quality imaging tools designed for reliability and consistent performance.

ABOUT THE PRODUCT

The Sigma 17-40mm f/1.8 DC Art Lens is a wide-to-normal zoom lens designed for RF-Mount mirrorless cameras. Covering a 25.5-60mm full-frame equivalent focal range, it supports a variety of shooting applications including landscape, street, portrait, and video work. The constant f/1.8 maximum aperture allows consistent exposure throughout the zoom range and supports shallow depth of field control. The optical design includes Special Low Dispersion and aspherical elements to reduce aberrations, flare, and ghosting. An internal zoom design maintains the lens length during operation, while HLA autofocus supports quiet and accurate focusing for both stills and video production workflows.

CORE SPECIFICATIONS

• Model Number: 214972
• Lens Type: Zoom
• Lens Mount: RF-Mount
• Minimum Focal Length: 17mm
• Maximum Focal Length: 40mm
• Minimum Aperture: f/16
• Maximum Aperture: f/1.8
• Image Stabilization: No
• Colour: Black
• Main Material: Metal
• Country of Origin: Japan

KEY FEATURES

• Constant f/1.8 Aperture: Maintains the same maximum aperture throughout the zoom range for consistent exposure control.
• 17-Element Optical Design: Includes four aspherical and four Special Low Dispersion elements to reduce aberrations and flare.
• Internal Zoom Design: Maintains consistent lens length during zoom operation for easier gimbal balancing.
• HLA Autofocus: High-response linear actuator autofocus supports quiet and accurate focusing performance.
• Dust and Splash Resistant Construction: Designed with environmental sealing and a water- and oil-repellent front coating.

BEST USE - STILLS

• Landscape Photography: Wide focal lengths support environmental and scenic image composition.
• Street Photography: The versatile zoom range supports changing compositions in urban environments.
• Portrait Photography: Longer focal lengths and the f/1.8 aperture support subject separation.
• Travel Photography: Wide-to-normal focal coverage reduces the need for multiple lenses.

BEST USE - VIDEO

• Run-and-Gun Filming: The zoom range and internal zoom design support mobile shooting setups.
• Gimbal Video Production: Internal zoom operation helps maintain balance during movement.
• Interview Recording: Quiet autofocus operation supports controlled indoor recording environments.
• Documentary Shooting: The focal range supports flexible framing across different shooting conditions.

WEIGHT & DIMENSIONS

• Weight: 560g
• Dimensions: 72.9mm x 115.9mm

What's in the box
1 x Sigma 17-40mm f/1.8 DC Art Lens RF-Mount