Tekniska specifikationer
Brännvidd20mm
Maximal bländaref/1.8
Minsta bländaref/16
Objektivkonstruktion13 elements in 11 groups (including 2 ED lens elements, 2 aspherical lens elements, and lens elements with Nano-Crystal coatings)
BildvinkelNikon film SLR and FX-format D-SLR cameras: 94°, Nikon DX-format D-SLR cameras: 70°
Minsta fokusavstånd
0.2m (0.66ft) from focal planeAntal bländarlameller7 (rounded diaphragm opening)
Filterstorlek77mm (P = 0.75mm)