This very cool and very rare fisheye Nikkor 6mm f/2.8 lens offers the "world's most extreme wide-angle" and is worth £100,000 has gone on sale at Gray's of Westminster in London. Lens production started in March 1972, and was only made available to special order. Pick it up for your new D800!
Focal length/Aperture: 6mm f/2.8
Lens construction:12 elements in 9 groups
Picture angle: 220°
Aperture scale: f/2.8-f/22 on' both standard and aperture-direct-readout scales
Weight : 5,200g
Filters: Built-in: skylight (L1BC), medium yellow (Y 48), deep yellow (Y52); orange (056), and red (R60)
Image taken with the 6mm lens