Experience the exceptional F 1.4 brightness and breathtaking sharpness across the entire image, even at maximum aperture. This lens captures stars in the night sky as clear, precise pinpoints of light, making it the ultimate choice for astrophotographers. The state-of-the-art optical design and large, high-precision double-sided aspheric glass front element allow for the addition of a front filter thread without compromising optical performance or size. The Sigma 20mm f/ 1.4 DG DN Art Lens also features a rear filter holder and a variety of useful switches, enhancing its usability and creative possibilities.
With 17 glass elements arranged in 15 groups, including two SLD and three aspherical glass elements, this lens rigorously suppresses optical aberrations to produce highly-detailed images with exceptional sharpness and accuracy from the center to the furthest corners. Designed for perfect results even in the most demanding conditions, this lens is equipped with a front filter thread and a rear filter holder, allowing photographers to combine multiple filters for near-unlimited creative potential. The new MFL (Manual Focus Lock) switch prevents accidental changes to the focusing distance, and the lens heater retainer prevents internal condensation during longer night shoots.
Built with a dust- and splash-resistant structure and a water- and oil-repellent coating on the front glass element, the Sigma 20mm f/ 1.4 DG DN Art Lens is safe for extended outdoor shoots. Its robust body, made from a combination of aluminum and Thermally Stable Composite (TSC), features a customizable AFL button, an aperture ring lock switch, and a focus mode switch for enhanced usability. The included petal-shaped lens hood with a lock mechanism and rubberized grip area ensures easy attachment and removal. Experience the unparalleled manufacturing technology of Sigma's sole production base in Aizu, Japan, and the company's expertise with large-aperture wide-angle lenses.
The Sigma 20mm f/ 1.4 DG DN Art Lens offers an exceptional experience with high-end results, even in the most challenging conditions.


