CANON - Canon EF 500mm f4L IS USM Parts

Complete parts catalog for the Canon EF 500mm 1:4.0L IS USM professional telephoto lens (reference C21-8471). This technical documentation provides comprehensive coverage of all components and subassemblies that constitute this advanced optical instrument. The catalog features five detailed exploded-view diagrams illustrating the internal architecture and arrangement of each lens group, autofocus mechanisms, image stabilization system, and all mechanical elements. Every component is identified by its unique part number (CA, CY, XA, YA, YG, YH, YN, YP series), with associated quantities and assembly locations clearly indicated. Individual lens elements are cataloged separately (groups G1 through G8), along with tripod support assemblies, switching systems, and electronic control panels. A comprehensive parts list at the end of the document organizes all components by category for quick reference and ordering of replacement parts. Also included: the ET-138 lens hood (reference C44-8311) with its three constituent parts. This resource is essential for service technicians, authorized repair facilities, and optical equipment enthusiasts requiring detailed parts information for maintenance, repair, and component replacement procedures.