CANON - Canon EF 400mmf28L IS USM Parts
by CANONComplete parts catalog for the Canon EF 400mm 1:2.8L IS USM telephoto lens (reference C21-8481). This comprehensive technical documentation provides detailed identification and ordering information for all available replacement components. The catalog features detailed exploded-view diagrams showing the complete lens assembly, with each part clearly marked by its Canon reference number. Coverage includes the entire optical and mechanical structure: lens groups (G1 through G10), focusing barrels, control rings, autofocus mechanisms, image stabilization (IS) units, gyro sensors, diaphragm elements, and all fastening components including screws, washers, and springs. Supplementary sections cover the ET-155 lens hood, Canon Lens Case 400 carrying case, and various lens cap variants. Parts lists are organized by component type and quantity to facilitate efficient ordering and service operations. This resource is essential for authorized service technicians, professional repair facilities, and equipment owners requiring accurate component identification or replacement guidance for this professional-grade telephoto lens.
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Document Details
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- 12
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- Photography