CANON - Canon EF 15mm fisheye parts

Complete spare parts catalog for the Canon EF 15mm f/2.8 Fisheye lens (Reference C21-5291). This comprehensive parts list and repair reference covers two classification versions—"to 05" and "from 06"—ensuring accurate component identification across production generations. The documentation details every optical and mechanical assembly: individual lens elements (G1, G2, G3, G6/7, G8), barrel groups, mount interfaces, autofocus motors and mechanisms, diaphragm control assemblies, and all mechanical and electronic subassemblies. Each component is cross-referenced with its official Canon part number and assigned a classification category (C, D, or E) for inventory and ordering purposes. Exploded-view diagrams show the precise spatial relationships and assembly sequence for all lens groups and mechanisms. The catalog includes substitution tables for alternative part numbers, dimensional data for adjustable components like focus helicoids and diaphragm rings, and page-indexed parts lists organized by assembly. An essential workshop manual and reference guide for Canon lens technicians, authorized repair centers, optical professionals, and equipment restorers who need exact parts data and assembly instructions.