Sigma 18-50mm f/2.0 lens patent exposure

Sigma applied for a patent for the 18-50mm f/2.0 lens in August 2020. Currently, Sigma has launched the 18-50mm f/2.8 DC DN lens, so this 18-50mm f/2.0 lens is unlikely to appear. Sigma released the 18-50mm F2.8 DC DN lens on October 19, 2021, suitable for APS-C format mirrorless cameras, with a constant large aperture of F2.8, while maintaining a light and small size. volume.

The lens has a 27-75mm equivalent focal length and is versatile enough to capture all types of photos and videos including landscapes, portraits, street sweeping, architecture, and events. The closest focusing distance of the lens is only 12.1cm, providing a magnification ratio of 1:2.8, which is suitable for macro photography.

The Sigma 18-50mm F2.8 DC DN lens has high specifications, 13 lens elements in 10 groups, 3 high-precision glass ground-cast aspherical lenses, and 1 SLD lens to minimize the total number of lenses used. The product supports body aberration correction, which further eliminates optical defects such as distortion and glare. The official said that the lens is manufactured in the "Aizu" factory in Japan, and it is the smallest and lightest product of its kind.

This Sigma lens is available in Sony E-mount and Sigma L-mount options. Not long ago, Sigma also announced that it will launch Fuji X-mount.

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