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Sigma 20mm f/2 DG DN Contemporary Fullframe Sony E-Mount lens ($699) is a compact prime with f/2 aperture ideal for landscape, cityscape and astrophotography. Wide, bright, and light, it is equally useful as a video lens, and particularly well suited for handheld vlogging and livestreaming.
Optical Design consists of 13 elements in 11 groups, including one F Low Dispersion (FLD), one Special Low Dispersion (SLD), and three aspherical elements. Distortion is minimal, imaging is sharp, and bokeh is smooth. On an APS-C format camera, 20mm turns into a 30mm-equivalent focal length. You can get as close as 8.7 inches from your subject for creative close-ups, a 1:6.7 magnification ratio.
The seventh of Sigma’s I-series of lenses, the new prime shares a number of stylish and functional design features with previous models, including all-metal construction, a manual aperture ring, and knurled controls. Similarly, it measures slightly less than 3 inches in either direction and weighs 13.1 ounces, making it an easy travel companion whether shooting stills or video. A metal lens hood and magnetic lens cap are included, adding yet another layer of functional elegance. Its mount is dust and splash resistant, while its front accepts 62mm filters.
Specs:
Lens Mount: Sony E
Lens Construction: 13 elements in 11 groups
Angle of View: 94.5 Degree (Full Frame) / 70.7 Degree (APS-C)
Diaphragm Blades: 9, rounded
Autofocus Actuator: STM (stepping motor)
Minimum Aperture: f/22
Minimum Focus Distance: 8.7″ (22cm)
Max. Magnification Ratio: 1:6.7
Filter Size: 62mm
Dimensions (Diameter x L): 2.8 x 2.9″ (70 x 72.4mm)
Weight: 13.1 oz (370g)
Order Sigma 20mm f/2 DG DN Contemporary lens from B&H Photo | Adorama
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