Sigma 17-40mm F1.8 DC Art (Sony E)

The Sigma 17‑40mm f/1.8 DC | Art is a high‑end standard zoom lens built for APS‑C mirrorless cameras using Sony E‑mount. Combining a super‑fast constant f/1.8 aperture with a flexible 17–40mm range, this lens delivers performance on par with many prime lenses — all while maintaining the versatility of a zoom. It’s designed for photographers and filmmakers who want exceptional optical quality without compromising creative freedom.

 Exceptional Speed & Flexibility

Constant Bright Aperture

Unlike many zooms with variable apertures, this lens holds a full f/1.8 maximum throughout the zoom range — allowing consistent exposure control, excellent subject isolation, and enhanced performance in low light.

Broad Focal Range for Everyday Shooting

The 17–40mm zoom covers a wide range of framing scenarios — from environmental shots and interiors at 17mm to portraits and street scenes up to 40mm equivalent on APS‑C (about 25.5–60mm in full‑frame terms).

 Optical & Mechanical Excellence

Premium Lens Construction

• 17 optical elements in 11 groups, including multiple SLD and aspherical elements for superior correction of distortion and chromatic aberration.
• Super Multi‑Layer Coating suppresses flare and ghosting for rich contrast, even in bright backlight.

Fast & Accurate Autofocus

Equipped with Sigma’s HLA (High‑response Linear Actuator) system for quiet, rapid focusing — ideal for both stills and video work.

Minimal Focus Breathing

Focus breathing is reduced for smoother focus transitions — a valuable advantage when recording video.

 Handling & Durability

Stable Inner Zoom Mechanism

An internal zoom design keeps the lens length constant while zooming, improving balance and handling — particularly on gimbals or handheld video rigs.

Comfortable Ergonomics

• Well‑placed controls and smooth zoom/focus rings deliver tactile precision
• Dust‑ and moisture‑resistant construction stands up to real‑world outdoor use

Creative Control

• An aperture/control ring allows intuitive adjustments
• Two assignable AFL buttons provide quick access to focus‑locking or custom camera functions (varies by mount)

Ideal Use Cases

• Low‑light photography — thanks to the bright f/1.8 aperture
• Portraits & lifestyle shoots — with smooth out‑of‑focus backgrounds
• Travel & street photography — flexible zoom range for varied scenes
• Content creation & video — minimal breathing and smooth handling
• Event photography — single‑lens solution without frequent lens changes

 Specifications

• Mount: Sony E (APS‑C mirrorless)
• Focal Length: 17–40mm
• Maximum Aperture: f/1.8
• Minimum Aperture: f/16
• Lens Construction: 17 elements in 11 groups (4 SLD, 4 aspherical)
• Aperture Blades: 11 (rounded)
• Minimum Focus Distance: 28 cm
• Maximum Magnification: 1:4.8 (at 40mm)
• Filter Size: 67 mm
• Dimensions: ~72.9 × 117.9 mm
• Weight: ~525 g
• Dust & Moisture Resistant: Yes
• Included: Lens hood, front & rear caps, pouch