NIKON - nikkor lens 6fisheye

Complete technical repair manual for the Nikon Fisheye-Nikkor 6mm f/2.8 lens, issued by Nippon Kogaku K.K. This workshop manual delivers everything needed to service, maintain, and repair this extreme wide-angle fisheye optic. The manual opens with a reference guide to all marks and symbols appearing in technical illustrations, followed by a detailed specifications table covering lubricants and binding agents specific to this lens model. Complete optical and mechanical specifications are included for accurate component verification. Optical construction diagrams show the full internal design of the lens with technical precision. The repair procedures section walks through systematic disassembly steps for common maintenance tasks, with clear guidance at each stage. A reassembly reference ensures optical and mechanical components are correctly reinstalled after repair work. An after-repair verification checklist confirms optical performance meets factory standards. The parts catalog lists complete part numbers and descriptions, supplemented by a detailed subassembly breakdown for quick component reference during teardown and rebuilding. An essential resource for technicians restoring vintage Nikon lenses.