Nikon 6mm AI-S Nikkor F2.8 Holy Grail Fisheye Lens $5000 in Tyler, Texas For Sale

For sale are one of the rarest lens: Nikon 6mm AI-S Nikkor F2.8 Holy Grail Fisheye with Original Caps, Metal Case and Manual. No fungus, No Scratches, No Bubbles, No Marks, etc. Some normal use with some small paint chips on the lens barrel. Iris is smooth. NO ISSUES!
For sale is one of the most gorgeous looking lens in 35mm SLR photography - a lens that can actually see behind itself ! Introduced in xxxx, this lens was not just an upgrade from the Non-Ai Nikkor Fisheye 6mm f/5.6 lens but it was completely being redesigned optically. The major difference between the two versions is, this lens has a retrofocus design which does not required mirror lock up in the camera section to work. It enables direct reflex viewing and metering through the lens. The Ai-S version was introduced only in early xxxx. Optically, both lenses remained unchanged in its optical composition other than went through a transitional changes which occurred in xxxx and Ai-S during early the '80.
Specifications of 6mm f/2.8s
Focal length/Aperture: 6mm f/2.8
Lens construction:12 elements in 9 groups
Picture angle: 220°
Diaphragm: Automatic
Aperture scale: f/2.8-f/22 on' both standard and aperture-direct-readout scales
Exposure measurement: Via full aperture method; meter coupling ridge provided for Al cameras and meter coupling shoe for non-AI cameras
Distance scale: Graduated in meters and feet from 0.25m (0.9 ft.) to infinity (oo)
Weight : 5,200g
Dimensions: 236mm dia. x 171mm long (overall); 160mm extension from lens flange
Filters: Built-in: skylight (L1BC), medium yellow (Y 48), deep yellow (Y52); orange (056), and red (R60)
Front lens cap: Slip-on