The 20mm F2 DG DN | Contemporary achieves high imaging performance from the center to the edges even at its maximum aperture of F2. Based on the most advanced technology in lens construction, the design includes three high-precision molded aspherical elements along with one SLD and one FLD lens to correct optical aberrations. The result is sharp and high-contrast photos all the way to the corners of the image. By focusing on reducing sagittal coma, which is difficult to correct in post-processing, the developers have achieved precise rendering of very bright light points. This leads to excellent sharpness across the entire image field, particularly benefiting night sky photography.
Lens type | Prime lens, Wide angle lens |
Bayonet lens mount | Sony E |
Sensor compatibility | full size |
Focus type | Autofocus, Manual focus |
Weight | 370 g |
Item number | 19500958 |
Manufacturer | Sigma |
Category | Lenses |
Manufacturer no. | 490965 |
Release date | 24.2.2022 |
Colour | Black |
Material group | Glass |
Material | 1 FLD, 1 SLD and 3 aspherical lens elements |
Minimum focus distance | 0.22 m |
Lens type | Prime lens, Wide angle lens |
Bayonet lens mount | Sony E |
Aperture | 2 f/ |
Min. aperture | 22 f/ |
Min. focal length (exact) | 20 mm |
Max. Focal length (exact) | 20 mm |
Focal length | 20 mm |
Sensor compatibility | full size |
Number of diaphragm blades | 9x |
Filter thread | 62 mm |
Number of lenses | 13 |
Number of lens groups | 11 |
Lens equipment | Filter thread |
Focus type | Autofocus, Manual focus |
Max. aperture | f/2 |
Aperture | f/2 - 22 |
Min. focal length (exact) | 0.02 m |
Max. Focal length (exact) | 0.02 m |
Filter thread | 0.06 m |
Lens equipment | Filter thread, Lens hood |
Country of origin | Japan |
CO₂ emissions | 0.84 kg |
Climate contribution | CHF 0.11 |
Scope of delivery | Back cover (LCR II), C, Contemporary SIGMA 20 mm F2 DG DN, Magnetic metal lens cap (LCF62-01M), Tulip-shaped lens hood (LH656-03) Front cover (LCF-62 III) |
Weight | 370 g |
Length | 74.40 mm |
Diameter | 70 mm |
Length | 17 cm |
Width | 10 cm |
Height | 10 cm |
Weight | 694 g |
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Source: Digitec Galaxus
The new Sigma i-series lens, which costs 700 euros, is specially designed for mirrorless cameras. This is especially important for wide-angle lenses, because without a mirror box the distance to the sensor shrinks, which makes the lens construction easier. Open, the resolution in the centre of the image is good to very good, the contrast very high...
The new Sigma lens fits very well into the manufacturer's i-Series model range thanks to its outstanding imaging performance. It expands this product line with a powerful wide-angle solution that enables exceptional perspectives and image effects.