NIKON - nikonos IVa service manual

Comprehensive service manual for the Nikon Nikonos IV-A, a rugged 35 mm single-lens reflex waterproof camera system engineered for underwater photography. This technical document provides detailed specifications, mechanical systems analysis, and maintenance procedures for this legendary underwater camera. The manual extensively covers the camera's specifications and technical features, including the vertically-traveling metal focal-plane shutter with electromagnetic control, automatic shutter speeds from 1/30 to 1/1000 seconds plus mechanical operation, and the inverted Galilean viewfinder with parallax compensation. Technical specifications are thoroughly documented: 24 × 36 mm picture format, Nikonos lens mount, W-Nikkor 35 mm f/2.5 standard lens, G13-type 1.5 V silver-oxide battery power, and waterproof operation to depths of 50 meters (160 feet). Key mechanical systems are presented with detailed illustrations and explanations: camera back and buckle assembly, film-advance and shutter release mechanisms, viewfinder and exposure information systems, rewind film operation, exposure control block charts, and exposure control circuits. External figure diagrams provide precise dimensional data and control layout information. Ideal for service technicians, professional photographers, and restoration specialists, this manual delivers the technical knowledge required to understand, service, and repair the Nikonos IV-A, enabling proper maintenance of this iconic underwater imaging instrument.