Deal of the day: Nikon Fisheye-Nikkor 6mm f/5.6 circular fisheye lens for $5,999 - Nikon Rumors
Nikon 6mm F/2.8 Fisheye Lens Eğlenceli olsa gerek :) ( Profesyonel Fotoğrafçılık ) - YouTube
Lensfinder.com - Ultra Rare Nikkor 6mm f/5.6. Only a few hundred of these lenses exist. This lens has a 220 degree field of view for Full Frame 24x36mm sensors. Made in Japan