Sigma 20 mm F1.8 EX DG ASPHERICAL RF for Nikon

Wide-angle lens with a fixed focal Sigma 20 mm F1.8 EX DG ASPHERICAL RF boasts a maximum aperture of 1.8 and the presence of the Tumi appreciate every professional photographer. Great correction of astigmatism, chromatic aberrations and distroze image is provided by the application aspherical elements in the lens construction. Images taken with this lens are characterized by high sharpness and brightness balanced. Great emphasis was also placed on reducing vignetting. The focus is solved in the dual version, which is itself a photographer very convenient, because it is prevented from spinning sharpening rings under your fingers. Together with the lens, you also receive a bayonet-shaped lens hood that fits on the outer flange of the lens. Dimensionally lens is designed for digital SLR cameras.
Specifications:
Designed for: NIKON Cameras
Basic characteristics:
Wide Angle
fixed focus
Optical track:
11 groups 13 lenses
Viewing angle:
94.5 °
Minimum aperture:
22
Minimum focusing distance:
20 cm
Max. ratio of the display:
1:4
Filter diameter:
82 mm
Size:
86.6 x 87 mm
Weight:
520 g