Sigma 20mm f/1.4 DG HSM Art Lens for Sigma SA

Sigma 20mm f/1.4 DG HSM Lens, a distinguished member of the Art series within Sigma’s Global Vision lenses, seamlessly combines advanced optics with a robust physical build. Featuring a sophisticated optical design with 15 elements in 11 groups, the lens includes two “F” Low Dispersion (FLD) elements, five Special Low Dispersion (SLD) elements, and two aspherical elements. This design effectively reduces chromatic and spherical aberrations, ensuring clean, sharp, and evenly illuminated imagery with minimal distortion. The Super Multi-Layer Coating further enhances image quality by minimizing surface reflections, flare, and ghosting.

Versatile Wide-Angle Lens:

Designed for full-frame sensors and compatible with APS-C models, providing a 30mm equivalent focal length.

Exceptional Low-Light Performance:

The fast f/1.4 maximum aperture excels in low-light conditions and provides precise control over focus position for creative depth-of-field effects.

Optical Precision:

Incorporates two FLD, five SLD, and two aspherical elements to correct chromatic aberrations, ensuring high image sharpness, clarity, and contrast across the entire focusing range.

Super Multi-Layer Coating:

Applied to lens elements to minimize flare and ghosting, resulting in contrast-rich and color-neutral imagery even in challenging lighting conditions.

Hyper Sonic Motor (HSM):

Enables fast, smooth, and near-silent autofocus performance. Allows full-time manual focus override by rotating the focus ring for refined control.

Durable Construction:

The lens barrel is constructed with a Thermally Stable Composite (TSC) material, ensuring precision and usability in diverse temperature conditions. The bayonet mount is crafted from brass for durability.

Creative Control:

Rounded nine-blade diaphragm produces an attractive out-of-focus quality, enhancing the lens’s creative capabilities.

Lens Hood and Protection:

Fixed petal-shaped lens hood reduces flare in strong lighting conditions and provides some protection to the front element.

Sigma USB Dock Compatibility:

Compatible with the optional Sigma USB Dock for fine-tuning various lens characteristics and updating firmware.