CANON - Canon EF 28 70mm f28L Parts
by CANONComplete parts catalog and repair documentation for the Canon EF 28-70mm 1:2.8L USM lens (Reference C21-9742). This workshop manual delivers detailed assembly diagrams, mounting schematics, and a comprehensive parts list for every replaceable component in this professional-grade zoom lens. Exploded views isolate each optical group (G2, G3, G4/5/6, G7, G8, G13/14, G15) and show how barrel assemblies, helicoid mechanisms, zoom and focus drives, USM motor units, control PCBs, and diaphragm modules fit together. Every part carries its Canon reference number, component category, required quantity, and precise location within the manual. Technical specifications for key components—dimensions, tolerances, and assembly notes—appear with cross-references to relevant pages. Service technicians and repair specialists will find this parts list and assembly guide indispensable for maintenance, troubleshooting, and component replacement work on this L-series lens.
Documentation must be downloaded on a computer (PC, Mac, or Linux).
Do not use a smartphone or tablet to download documentation; they generally lack sufficient memory capacity to handle large files, and few users know how to locate the download folder on these devices.
Once downloaded, you can use it right away and even print the pages you need, or use your smartphone in photo mode to translate into the language of your choice: Google Translate
Document Details
- Format
- Pages
- 10
- Size
- 250.1 KB
- Category
- Photography