Sigma 20mm f/1.4 DG HSM Art Lens - Leica L-Mount

The Sigma 20mm f/1.4 DG HSM Art Series Lens is a lens in Leica L mount, made for landscape use. Aperture: f/1.4

Key Features

• Rounded Nine-Blade Diaphragm
• Aperture Range: f/1.4 to f/16
• L-Mount Lens/Full-Frame Format
• Two FLD Elements and Five SLD Elements
• Features Two Aspherical Elements
• Great Optical Design
• Robust Physical Construction

This lens offers great optical performance and robust physical construction. Super Multi-Layer Coating minimises surface reflections, flare and ghosting for increased contrast and colour accuracy. Comprised of 15 elements in 11 groups, the design includes two "F" Low Dispersion (FLD) elements, five Special Low Dispersion (SLD) elements and two aspherical elements to reduce chromatic and spherical aberrations and limit distortion for clean, sharp, evenly illuminated imagery.

The wide focal length and consistent image quality suit landscape, interior, architectural and astrophotography applications, while the fast f/1.4 maximum aperture suits natural and low-light shooting.

Autofocus and Build

The integrated Hyper Sonic Motor (HSM) delivers quick, quiet autofocusing with an optimised AF algorithm, and permits full-time manual focus control by rotating the focus ring at any moment. A rounded nine-blade diaphragm produces an attractive out-of-focus quality.

The lens is constructed using a Thermally Stable Composite (TSC) material, along with traditional metals, for greater precision across wide temperature variations. This prime wide-angle lens is designed for full-frame Leica L-mount mirrorless cameras, and can also be used with DX models where it delivers a 30mm equivalent focal length. The bayonet mount is constructed from brass for accuracy and durability.