Focal length 20 mm
Maximum aperture f/1.8
Minimum aperture f/16
Lens construction 14 elements in 11 groups (including 3 ED glass and 3 aspherical lens elements, and elements with Nano Crystal Coat)
Angle of view FX format: 94°
DX format: 70°
Minimum focus distance 0.20 m/0.66 ft from focal plane
Maximum reproduction ratio 0.19x
Diaphragm blades 9 (rounded diaphragm opening)
Filter-attachment size 77 mm (P = 0.75 mm)
Dimensions Approximately 84.5 mm/3.4 in. maximum diameter x 108.5 mm/4.3 in. (distance from camera lens mount flange)
Weight Approximately 505 g/1 lb 1.9 oz
Supplied accessories LC-77B Lens Cap (front cap), LF-N1 Lens Cap (rear cap), HB-95 Lens Hood, CL-C1 Lens Case
Specifications are subject to change without notice.

MTF Chart

Spatial Frequencies S: Sagittal M: Meridional
10 lines/mm
30 lines/mm

How to read the MTF chart

Lens Construction

  • ED glass elements
  • Aspherical lens elements

Z mount Lenses