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Sigma’s Art series has already earned a reputation for delivering outstanding optical performance at an accessible price point. The 24mm, 35mm, and 50mm lenses are celebrated for their sharpness, low distortion, and fast apertures. Building on that success, Sigma has announced the 20mm f/1.4 GD HSM Art prime—the world’s first ultra‑fast wide‑angle lens that combines a 20mm focal length with a maximum aperture of f/1.4.
The optical construction features 15 elements in 11 groups, incorporating Low‑Dispersion (LD) and Super‑Low‑Dispersion (SLD) glass to suppress chromatic aberration. The sophisticated design keeps distortion to a minimum, even at the edges—a critical advantage for landscape and architectural shooters who demand flat perspective.
However, the lens’s performance comes at a weight and bulk. Its 3.6‑inch diameter and 5.1‑inch length translate to 33.5 ounces, roughly 2.5 times heavier than Nikon’s 20mm f/1.8 g. The size is a trade‑off for the expanded glass count and wide aperture.
Construction aligns with Sigma’s Art heritage: a Thermally‑Stable Composite body, a brass bayonet mount, and a Super‑Multi‑Layer coating that minimizes flare and ghosting. The 11‑blade diaphragm delivers smooth bokeh, and the lens can focus as close as 10.9 inches (28 cm). A premium metal lens cap is also available for $23.
The 20mm f/1.4 Art will launch at the end of November for $899, a price point that matches the rest of the Art lineup.
While the 35mm and 50mm have become staples in portrait and wedding photography, Sigma’s move to a 20mm f/1.4 signals a broader vision: to pioneer “world firsts” that open new creative possibilities. The upcoming 20mm prime will be among the first to be tested in our lab once units arrive.
