CANON - Canon EF 300mm f4L IS Parts
by CANONComplete parts catalog for the Canon EF 300mm 1:4.0 L IS USM telephoto lens (reference C21-8401). This technical document provides exhaustive information on all component parts of this professional-grade optical instrument, encompassing optical elements, mechanical assemblies, and electronic systems. The catalog features detailed exploded views illustrating the construction of major sub-assemblies: focusing unit (YG2-0302), power diaphragm unit (YG2-0303), image stabilization unit (YG2-0305-040), gyro sensor unit (CY1-2781), A/M and IS switch assemblies (CY1-2782), and main PCB assembly (CY1-2786). Over 80 individual part numbers are catalogued with corresponding serial references, classification codes, and required quantities. Each optical component is precisely identified (G1 through G14 lens elements, protective windows, spacers), along with all structural elements (barrels, rings, collars) and fasteners (screws and sets crews). Additional technical diagrams specify critical dimensional tolerances and document old/new component variations for compatibility purposes. An essential reference tool for maintenance technicians, repair professionals, and optical equipment specialists.
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Document Details
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- Pages
- 7
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- 299.1 KB
- Category
- Photography