Model no
414

20mm F1.4 DG DN | A

The ultimate lens for astrophotography.

• The world’s first 20mm F1.4 full-frame mirrorless lens, equipped with functions especially useful 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.

As low as 1 060

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.

Specifications

 

• Lens construction: 17 elements in 15

groups                                                                                                       

• 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: ø82mm

• Dimensions:

L-mount: ø87.8mm × 111.2mm

Sony E-mount: ø87.8mm × 113.2mm

• Weight:

L-mount: 635g

Sony E-mount: 630g

• Lens hood: LH878-04 included

• "Made in Japan" craftsmanship

• Guide Plate GP-21 included

Specifications
More Information
Product LinesArt
Construction17 elements in 15 groups
Lens TypeWide Angle
Sensor SizeFull Frame
Angle of view94.5 ° (FF), 70.7 ° (APS-C)
Number of diaphragm blades11 (rounded diaphragm)
Minimum apertureF16
Minimum focusing distance23 cm
Maximum magnification ratio1:6.1
Dimensions (diameter x length)

L-mount    
Sony E-mount

⌀ 87,8 mm x 111,2 mm
⌀ 87,8 mm x 113,2 mm

Weight (g)635 g
Filter diameterφ 82mm
Edition numberA022
Supplied AccessoriesCase, Petal-type hood with lock (LH878-04), Front Cap (LCF-82 III), Rear Cap (LCR II), Guide Plate (GP-21)
AccessoriesSIGMA USB Dock UD-11 (L-Mount), SIGMA WR CERAMIC PROTECTOR 82mm, SIGMA WR PROTECTOR 82mm, SIGMA PROTECTOR 82mm, SIGMA WR UV FILTER 82mm, SIGMA WR CIRCULAR PL FILTER 82mm
EAN

L-mount
Sony E-mount

085126414696
085126414658

* All figures calculated by L-Mount. Note: The L-Mount Trademark is a registered Trademark of Leica Camera AG. About Product Name: Product name includes "DG" when the lens is designed to deliver the ultimate in performance on cameras with full-frame sensors, and "DN" when the lens design is optimized for mirrorless cameras with the short flange focal length.
Lens Construction
Geometrical MTF Chart
© SIGMA IMAGING Nordic