CANON - canon lens 24 85
by CANONComprehensive service manual for the Canon EF 24-85mm f/3.5-4.5 USM and EF 24-85mm f/3.5-4.5 USM MS zoom lenses (reference designations C21-9921 and C21-9922). This professional workshop manual provides service technicians and Canon support centers with complete technical theory and step-by-step repair procedures for these precision zoom optics. The document is structured in five major sections covering development objectives and specifications in Part 1; electronic components, IC pin configurations, circuit descriptions, optical system layout, and mechanical operation in Part 2; detailed repair work including disassembly, reassembly, centering adjustment, optical tilt correction, focus calibration, pulse adjustment, focus compensation tuning, and zoom brush positioning in Part 3; comprehensive parts catalog with annotated component illustrations and part numbers in Part 4; and complete electrical schematics plus PCB layouts in Part 5. An essential repair manual and technical reference for anyone servicing these Canon EF zoom lenses.
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
- 70
- Size
- 4.7 MB
- Category
- Photography