SIGMA 20mm F1.4 DG DN Art | Sony E-mount

Exceptional optical quality and a wealth of invaluable features.

The reference lens for astrophotography since the precursor 20mm F1.4

The F1.4 series represents the SIGMA Art line, which aims for the highest optical performance and intense expression. The SIGMA 20mm F1.4 DG DN | Art Full Frame is a hybrid version of the SIGMA 20mm F1.4 DG HSM | Art; the one and only lens* with its unique 1.4 maximum aperture and 20mm ultra-wide angle characteristics. This lens offers photographers exceptional optical performance and unlimited potential for ultra-wide angle creativity, all in a compact lens.

The exceptional brightness of the F1.4 aperture and the breathtaking sharpness of the entire image, even at the maximum aperture, make this lens the ultimate choice for astrophotography. In the darkness of night and focused at infinity, the 20mm F1.4 DG DN | Art captures the stars in the sky as clear, sharp points of light.

The advanced optical design and large, high-precision, double-sided aspherical glass front lens allowed the addition of a filter front thread without any compromise in optical performance or size. The addition of other valuable features, such as a rear filter holder and a variety of useful switches, further enhances the lens' creative possibilities and ease of use. Its incredible sharpness and very bright aperture, combined with its compact size and well thought-out features, make the SIGMA 20mm F1.4 DG DN | Art the benchmark lens for astrophotography and the ideal companion for any demanding photographic situation.

As an AF interchangeable lens for Full Frame Hybrid cameras (from August 2022, by SIGMA).

Specifications 20mm F1.4 DG DN | Art

• Optical formula 17 lenses in 15 groups
• Angle of view (Full-Format) 94.5
• Diaphragm Circular (11 blades)
• Minimum aperture F16
• Minimum focusing distance 23cm
• Focusing AF-S Yes
• Focusing AF-A Yes
• Focusing AF-C Yes
• Manual Focus Yes
• Eye AF Yes
• Smile/Face Detection Yes
• AFL button Yes
• Dust and splash resistant Yes
• Compatible with built-in optical corrections Yes
• Maximum aspect ratio 1:6.1
• Filter diameter φ82mm
• L-Mount dimensions (diameter x length) φ87.8mm × 111.2mm
• Weight L-Mount 635g
• Edition A022
• Supplied Accessories LCF-82 front cap Ⅲ, LH878-04 locking corolla sunshade, LCR rear cap Ⅱ
• LH878-04 sun visor
• Art Line
• DGDN Category