CANON - Canonet QL25 falcao

Comprehensive service manual and repair guide for the Canon Canonet QL25, the celebrated compact 35mm rangefinder camera introduced in 1965. This hands-on workshop resource walks you through the complete disassembly, cleaning, lubrication, and reassembly of this shutter-priority automatic exposure camera, with detailed photography documenting each stage of the repair process. The manual progresses systematically from external components—front rings, nameplate, and rangefinder window—through the electric eye assembly and speeds mechanism, finally reaching the critical shutter and diaphragm system where precision work is essential. Every disassembly procedure is accompanied by clear step-by-step photography showing component positioning and removal sequences, with practical guidance on documenting your work to ensure accurate reassembly. The core focus of this repair manual addresses the specific malfunction affecting this camera: oil contamination and residue buildup on shutter and diaphragm blades causing mechanical seizure and sluggish operation. Dedicated sections detail proven cleaning methodology using period-appropriate solvents including benzene and alcohol, alongside mechanical cleaning techniques for delicate precision components. Reassembly instructions provide exact sequencing for blade installation, spring positioning, and mechanism synchronization to restore proper function of the automatic exposure system. Written from genuine hands-on repair experience, this resource serves as an invaluable technical reference for camera technicians, restoration specialists, and photography enthusiasts seeking detailed guidance for successful repair and restoration of this particular model.