AGFA - Agfa Karat 1936 CLA

Comprehensive technical manual for complete overhaul and lubrication (CLA) of the AGFA Karat 3.5 camera, a historically significant medium-format apparatus fitted with the 1936 Compur-Rapid rim-set shutter mechanism. This service guide provides detailed procedural documentation across four primary sections: preliminary examination and systematic camera dismantling to access the shutter assembly, full disassembly of the Compur-Rapid mechanism with annotated step-by-step photography, cleaning and lubrication protocols for shutter blades, operating ring, springs, and escapement components, and methodical reassembly procedures. The workshop manual covers critical positioning of the retard mechanism, reinstallation of main and secondary springs, proper seating of lever assemblies, and verification of shutter speed functionality across the entire speed range. A dedicated testing section documents shutter speed verification using precision Phochron XA testing equipment, film loading into proprietary AGFA Rapid film holders, development of test negatives using standard black-and-white chemistry, and scanning of processed negatives to confirm restoration success. Essential reference for camera restoration specialists, horological technicians working with mechanical shutter systems, and vintage photography enthusiasts undertaking hands-on CLA and restoration projects on pre-war medium-format cameras.