Sigma 17mm F4 DG DN | Contemporary – L-Mount & Sony E-Mount

The Sigma 17mm F4 DG DN | Contemporary is an ultra-wide, full-frame prime lens designed for photographers who want big impact in a compact package. Part of the beautifully crafted I Series, this lens is perfect for travel, vlogging, architecture, interiors, and sweeping landscapes—offering an expansive field of view without the bulk.

Key Features

• Lens Mounts: L-Mount and Sony E-Mount

• Sensor Format: Full-frame (DG)

• Focal Length: 17mm – ultra-wide perspective for dynamic compositions

• Maximum Aperture: f/4 – compact and consistent with excellent depth of field control

• Minimum Aperture: f/22

• Angle of View: 103.7°

• Aperture Blades: 7 (rounded diaphragm for smooth out-of-focus areas)

• Minimum Focusing Distance: 12cm / 4.8in

• Maximum Magnification: 1:3.6

• Filter Size: 55mm

Optical Design

With 9 elements in 8 groups, including:

• 2 SLD (Special Low Dispersion) elements

• 3 aspherical lenses

This lens provides excellent sharpness, minimal distortion, and strong close-up performance—despite its ultra-wide coverage. The short focusing distance adds creative flexibility for unique angles and foreground emphasis.

Build & Dimensions

• L-Mount: 64.0mm × 48.8mm

• Sony E-Mount: 64.0mm × 50.8mm

• Weight:

  • L-Mount: 225g / 7.9oz

  • Sony E-Mount: 220g / 7.8oz

Despite its ultra-wide field of view, the lens remains exceptionally compact and lightweight. Its all-metal construction and tactile controls reflect Sigma’s premium I Series design ethos.

Supplied Accessories

• Lens Hood (LH576-06B / LH576-06S)

• Magnetic Metal Lens Cap (LCF55-02 MB / MS)

• Standard Front Cap (LCF-55 IV)

• Rear Cap (LCR III)

• Protective Pouch

Why Choose the Sigma 17mm F4 DG DN?

Compact yet capable, the Sigma 17mm F4 DG DN is a superb ultra-wide option for photographers and content creators who want expansive framing without sacrificing portability. Ideal for travel, vlogging, and environmental storytelling—it’s a small lens with a big perspective.