CANON - Canon SpeedFinderFN Parts

Comprehensive parts catalog for the Canon Speed Finder FN C54-0811 viewfinder accessory, providing the technical reference needed to identify, order, and replace components in this classic photographic accessory. The document is structured in two essential sections: an isometric exploded view diagram that clearly maps each component to its Canon part number, followed by a detailed parts list organized by part number, classification level (classes A through E), quantity per assembly, and functional description. The catalog covers the complete optical path including the pentaprism and eyepiece lens elements, all locking mechanisms and electrical contacts, springs, spacers, and masks, plus every fastening element from screws and contact springs to pins and retaining hardware. Critical parts are documented with dimensional specifications and tolerance ranges, particularly the spacers and masks where precision fit directly affects optical alignment and mechanical function. Part numbers are systematically cross-referenced throughout, making it straightforward to locate exact components for procurement or replacement. This service reference is invaluable for technicians performing repairs, restorers returning vintage equipment to working condition, and collectors sourcing authentic replacement parts to maintain or restore the Speed Finder FN to original factory specifications.