Sigma 20mm F1.4 DG HSM Art Lens for DSLR Cameras, Nikon F Mount, High-Speed Lens for Snapshots

The Sigma 20mm F1.4 DG HSM | Art for Nikon F-mount brings a rare combination, an ultra-wide 20 mm focal length matched to a very fast f/1.4 aperture, designed to deliver striking wide-angle imagery with excellent low-light capability. Built as part of Sigma's Art line, it prioritizes edge-to-edge sharpness, coma control for astrophotography, and professional-level optical correction.

Ideal for landscape, architecture, and night-sky photographers, the lens produces high-resolution images, smooth bokeh when required, and reliable AF performance via a ring-type Hyper Sonic Motor. Though discontinued, this optic remains valued for its specialist performance on full-frame Nikon DSLRs and APS-C bodies with outstanding optical engineering.

The Sigma 20mm F1.4 Art, released 2015, is an ultra-wide-angle prime optimized for full-frame (DG) sensors, featuring 15 optical elements, FLD and SLD glass, and a rounded nine-blade diaphragm. It is built for photographers seeking maximum light gathering, minimal coma, and strong corner performance at wide apertures.

Problem

Many wide-angle lenses either trade aperture for sharpness, or show pronounced coma and chromatic aberration at night. This lens addresses those issues by pairing an f/1.4 maximum aperture with advanced optical elements and coatings to keep stars sharp and edges clean.

• Soft corners at wide apertures on cheaper wide-angle lenses.
• Coma and star distortion for astrophotography seekers.
• Poor low-light performance without a very fast aperture.

Solution

Combining f/1.4 brightness with a high-precision optical formula, the Sigma 20mm Art provides a practical solution for photographers who need wide coverage without sacrificing low-light capability or star-point fidelity. The lens minimizes common wide-angle trade-offs so shooters can use wide apertures with confidence.

Benefits

• Low-Light Capability: Use faster shutter speeds and lower ISO for cleaner images.
• Astrophotography Ready: Superior coma control preserves star shapes across the frame.
• Professional Sharpness: High corner-to-corner resolution for large prints and crops.
• Robust Handling: TSC barrel, metal mount, and reliable HSM focusing for field use.

Applications

• Astrophotography, Milky Way and night-sky imaging
• Landscape and panoramic environmental photography
• Architecture and real-estate, where low distortion is essential

Why Choose

• Rare combination of ultra-wide 20 mm focal length with an f/1.4 aperture, plus Sigma Art optical engineering for superior sharpness and coma suppression.

Certification

Quality control verified with Sigma's A1 MTF testing process, and built using premium FLD and SLD optical glass standards.