CANON - Canon EF 300mm f28L Parts
by CANONComplete parts catalog for the Canon EF 300mm f/2.8 L USM telephoto lens (REF.NO. C21-8252). This service manual provides comprehensive technical documentation of every internal component in this professional-grade optical instrument. The catalog spans five pages of detailed exploded-view diagrams showing the complete optical assembly, USM autofocus mechanics, manual focus system, and all glass elements from G1 through G9. Each part is listed with its Canon reference number, component classification, and required quantity for assembly or replacement. Cross-sectional technical drawings clarify the optical group geometry and dimensional specifications for precision components. A dedicated section addresses the Canon ET-118 and ET-118 II lens hoods, detailing their individual parts and distinguishing old from new production variants. Canon service technicians, authorized repair shops, and professional lens restorers will find every component reference, subassembly, mounting fastener, and electronic module needed for maintenance, repair, or complete restoration of this premium telephoto lens.
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Document Details
- Format
- Pages
- 12
- Size
- 319.1 KB
- Category
- Photography