Sigma 17-40mm f/1.8 DC Art Lens for Lumix L Mount

Sigma 17-40mm F1.8 DC | Art Lens for Lumix L Mount

The Sigma 17–40 mm F1.8 DC | Art lens for L-Mount is a landmark standard zoom designed exclusively for APS-C mirrorless systems. It offers a constant F1.8 aperture across its range, delivering prime-grade brightness and clarity in a compact, travel-friendly form. This lens suits photographers and videographers who demand top-tier performance with added versatility.

Optical Excellence

Featuring 17 elements in 11 groups—including four SLD and four aspherical lenses—the optical formula excels at reducing chromatic aberration and coma while delivering sharp, high-contrast images even when shot wide open at F1.8. Super Multi-Layer Coating further eliminates flare and ghosting, ensuring superior visuals in all conditions.

Exceptional Aperture & Bokeh

The constant F1.8 max aperture allows extended depth-of-field control and impressive low-light performance. The rounded 11-blade diaphragm creates smooth, pleasing bokeh—making it ideal for portraits, video, and creative storytelling.

Robust Build & Handling

Despite its bright aperture, the lens remains lightweight at just 535 g and measures merely 73 × 116 mm. Weather-sealed and featuring a water- and oil-repellent coating on the front element, it withstands dust and moisture for reliable outdoor use. An internal zoom design prevents barrel extension under gravity, while the zoom-lock switch helps avoid creep when carried.

Video-Ready Features

The High-response Linear Actuator (HLA) autofocus delivers quiet, fast, and accurate tracking, with minimal focus breathing—perfect for smooth zoom pulls in video. The aperture ring includes a de-click option and lock switch, adding precision control for cinema-style work.

Key Specifications

• Focal Range: 17–40 mm (≈25.5–60 mm eq.)

• Constant Aperture: F1.8

• Minimum Focus Distance: 0.28 m; max magnification 1:4.8

• Rounded 11‑blade diaphragm; min aperture F16

• Filter thread: 67 mm; dimensions: 73 × 116 mm; weight: 535 g

• Dust-/splash-resistant with water/oil-repellent front element

Availability

Available in L-Mount (as well as Sony E, Fuji X, and Canon RF), shipping mid-July 2025. It presents a powerful alternative to slower zooms or multiple primes. L-Mount users will appreciate compatibility with Sigma’s USB Dock UD‑11 for custom tuning.

The Sigma 17–40 mm F1.8 DC | Art lens for L-Mount redefines APS-C mirrorless zoom performance. Boasting exceptional optical quality, constant F1.8 brightness, fast silent autofocus, and rugged build—all in a compact package—it’s the ultimate travel, video, and creative tool for L-Mount users.

Description
Sigma 17–40 mm F1.8 DC Art for L-Mount: fast F1.8 standard zoom, sharp optics, weather-sealed, video-capable and compact.

Codes = 4214969  , 0085126214692 , 214969

More Sigma here

Review Here