Fisheye NIKKOR 6mm/5.6 220K
Nikon used to catalog the widest variety of lenses for
35mm SLR from 6mm to 2000mm
This lens was first designed in 1969 as the SAP-Fisheye lens
for the National Antarctic Expedition team to observe
the whole sky and surrounding ground together.
Thelens takes 220 degree of image in 21.6mm circle.
