The Nikon Nikkor 1200 mm f/ 11 ED IF Ai Lens. Specs. MTF Charts. User Reviews.
MF Zoom-Nikkor 1200-1700mm f/5.6~8.0s P ED IF
Nikkor-P 1200mm f11
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Rare Nikon 1200mm F11 pops up on eBay: Digital Photography Review