Fisheye-Nikkor lens 5.6/6mm 220°

Very rare Nikon Fisheye-Nikkor lens, from the first batch of approximately 50 lenses only, engraved “Nippon Kogaku Tokyo”, 220° lens with built-in filter revolver, with the matching finder engraved “F Nikkor Japan”.

It's retrofocus design demanded the use of nine optical elements with the front element diameter being 20cm, seems only natural that the total weight of the lens is 5kg.

The Nikon Fisheye-Nikkor lens 5.6/6mm 220° could be used to photograph behind itself!

Photo credit: © WestLicht Photographica Auction