CANON - Canon EF 100mm f28 Macro Parts

Complete technical parts catalog for the Canon EF 100mm 1:2.8 MACRO lens (Reference C26-1221). This professional service documentation provides comprehensive reference material essential for maintenance, repair, and assembly of this high-performance macro lens. The catalog contains detailed exploded views of the complete optical system, showing the precise arrangement of all optical elements (lenses G1 through G10) and mechanical and electronic subassemblies. Each page presents numbered and annotated assembly diagrams, enabling precise identification of every component. The complete parts list catalogues over 100 components with official Canon reference numbers, component classification, and quantities required. Parts coverage spans the entire system: barrels (fixed, main, front and rear), rings, focusing mechanism (manual and autofocus), motorized diaphragm, AF drive unit, electronic circuits, gaskets, springs, and individual optical elements. Ideal for repair technicians, lens restorers, and photography enthusiasts, this document also presents both old and new variants of certain parts, enabling maintenance and upgrading of lenses from different production years. Clear technical illustrations and systematic nomenclature facilitate ordering of authentic replacement parts and comprehensive system understanding for complete optical and mechanical restoration projects.