Sigma 20mm f/1.4 DG DN Art Lens for Sony E

The Sigma 20mm f/1.4 DG DN Art Lens (Sony E) is a high-performance ultrawide prime built for creators who require outstanding corner-to-corner sharpness, excellent low-light capability, and features tailored specifically for astrophotographers. With its fast f/1.4 aperture, robust optical engineering, and both front and rear filter support, this lens is ideal for landscape, architecture, night sky, and creative wide-angle work.

Sigma’s updated design minimizes sagittal coma flare, maintains high contrast, and ensures pinpoint star rendering—an essential advantage for night sky imaging. Additional enhancements like the Manual Focus Lock (MFL) switch and compatibility with 82mm front filters make it one of the most versatile ultrawide primes available.

Key Features

Exceptional Optical Performance

• Fast f/1.4 maximum aperture for superior low-light performance and shallow depth of field.

• Optimized optical design that controls distortion, vignetting, and chromatic aberration.

• Incorporates two SLD elements and three aspherical elements for clarity and high contrast across the frame.

• Concave double-sided aspherical element delivers outstanding corner-to-corner sharpness.

• Super Multilayer Coating minimizes flare and ghosting for clean, color-neutral imagery.

Designed for Astrophotography

• Extremely well-controlled sagittal coma flare ensures sharp star points across the entire image.

• New MFL (Manual Focus Lock) switch prevents accidental focus changes during long night sessions.

• Curved front lip prevents lens heaters from slipping into the frame.

• Accepts 82mm front filters, uncommon for ultrawide f/1.4 lenses.

• Rear filter holder supports sheet-type creative filters.

Advanced Focusing System

• STM stepping motor provides fast, accurate, and near-silent autofocus.

• Inner focusing system maintains lens stability and reduces focus breathing.

• Compatible with AF Assist on supported Sony E-mount bodies.

Professional Build Quality

• Aperture ring includes click and lock switches for flexible operation.

• Eleven-blade rounded diaphragm creates smooth, pleasing bokeh.

• Petal-shaped hood reduces flare and protects the front element.

• Brass bayonet mount ensures long-term durability and precision.

Ideal For

• Landscape photography

• Architecture

• Astrophotography

• Environmental portraits

• Night sky time-lapse and long exposures

• Travel and creative wide-angle photography

What’s in the Box

• Sigma 20mm f/1.4 DG DN Art Lens for Sony E

• Sigma Lens Hood for 20mm f/1.4 Art DG DN Lens

• Sigma LCF-82 III 82mm Front Lens Cap

• Sigma LCR II Rear Lens Cap for Sony E

• GP-21 Guide Plate

• Limited 4-Year Manufacturer Warranty