NIKON - Nikon Photomic FTn Service 8 1970

Service manual for the Nikon Photomic FTn, the landmark TTL metering prism of the 1970s that transformed the Nikon F series into a fully electronic SLR camera. This 56-page technical document is essential for repair specialists and technicians servicing these cameras. The manual covers the complete mechanical and electronic design of the Photomic FTn prism head, its CdS light-sensing cells, and the integrated TTL coupling system that made match-needle metering seamless for the first time in the F-mount ecosystem. You'll find detailed disassembly and reassembly instructions, calibration procedures for both optical and electronic adjustments, testing protocols to verify metering accuracy and rangefinder performance, and complete technical specifications. The service procedures explain how to diagnose faults in the light-sensing circuit, adjust aperture coupling linkages, clean optical surfaces, and restore proper battery contact behavior — practical knowledge that separates a competent repair from a botched one. This is official Nikon workshop documentation, the kind repair facilities have relied on for decades to keep these cameras functioning as their designers intended. Indispensable for professional restoration work and serious hobbyists maintaining their Nikon F system gear.