Best Pick

Sigma Contemporary 20mm f/2 DG 20mm

74.2 Score
20mmf/2L-MountWeather Sealed
Why we recommend this

The f/2 maximum aperture and 13-element optical design with aspherical and ED glass deliver strong low-light performance and sharpness in a compact 370g body. Its all-metal, weather-sealed I Series construction and tactile aperture ring provide a premium handling experience rare at this size. This lens is best for environmental portrait and astrophotography shooters who need a fast, ultra-wide prime that won't weigh down a kit.

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Great Alternatives

These options also score highly and may better suit your specific needs

Sigma Art 270101 70mm

62.8 Score
70mmf/2.8L-Mount
Why we recommend this ▼

The optical design, featuring two high refractive index SLD elements and a floating focus system, delivers sharp 1:1 macro reproduction with minimal aberrations. Its compact 526g build and 49mm filter thread make it a lightweight, filter-friendly option for precise field work. This lens is best for macro photographers using L-Mount systems who prioritize optical clarity over autofocus speed or weather sealing.

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Sigma Art 270101 70mm lens
Price $549