The ultimate lens for astrophotography.

• The worlds first 20mm F1.4 full-frame mirrorless lens
• Dedicated functions for astrophotographers
• Highest optical performance on a new level
• Designed for perfect results even in the most demanding conditions
• Superb build quality and usability with uncompromising attention to detail
• Exceptional build quality
• Inner focus system
• “Made in Japan” craftsmanship
• Available for L-Mount and Sony E-mount
• Perfect for:astrophotography, architecture, fashion photography, and landscape

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The ultimate lens for astrophotography.

• Highest optical performance on a new level
• Designed for perfect results even in the most demanding conditions
• Superb build quality and usability with uncompromising attention to detail

Outstanding optical quality and a range of invaluable features The ultimate astrophotography lens from the 20mm F1.4 pioneer

The F1.4 series represents the SIGMA Art line, which pursues the highest optical performance and rich expression.

The full-frame SIGMA 20mm F1.4 DG DN | Art is a mirrorless version of the SIGMA 20mm F1.4 DG HSM | Art; the one and only lens* with its unique specification of maximum aperture of 1.4 and an ultra-wide angle of 20mm.

This lens offers photographers overwhelming optical performance and unlimited potential for ultra wide-angle creativity at a compact physical size.

The exceptional F1.4 brightness and the breathtaking sharpness across the entire image even at maximum aperture make this lens the ultimate choice for astrophotography.

In nightly darkness and focused to infinity, the 20mm F1.4 DG DN | Art captures stars in the sky as clear, precise pinpoints of light.

State-of-the-art optical design and the large, high-precision double-sided aspheric glass front element made it possible to add a front filter thread without any compromises regarding optical performance or size.

The addition of other invaluable features such as a rear filter holder and a variety of useful switches further increases the creative possibilities and easy usability of the lens.

Its incredible sharpness and very bright aperture, coupled with the compact body and thoughtful features, make the SIGMA 20mm F1.4DG DN | Art the ultimate lens for astrophotography and an ideal companion for any photographically demanding situation.

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Lens construction: 17 elements in 15groups

Viewing angle: 94.5

Number of aperture blades: 11 (round)

Minimum aperture: F16

Minimum focus distance: 23 cm

Maximum magnification ratio: 1:6.1

Filter size: 82mm

Dimensions:
L-mount: 87.8mm 111.2mm
Sony E-mount: 87.8mm 113.2mm

Weight:
L-mount: 635g
Sony E-mount: 630g

Lens hood: LH878-04 included

“Made in Japan” craftsmanship

Guide Plate GP-21 included