SPT - Copal SVE

Comprehensive technical manual for servicing and maintaining the Copal SVE shutter mechanism as installed on the Yashica Lynx 14E camera. Published by the Society of Photo-Technologists in May/June 1972 and specially Amos, this reference guide serves as an essential resource for technicians and camera enthusiasts requiring detailed knowledge of this precision component. The manual opens with pre-disassembly test results documenting shutter speed accuracy across the full range of exposures, from 1 second to 1/500th second, along with flash synchronization performance (X and M modes) and time delay specifications. All shutter speed measurements are presented as percentage deviations from 100% accuracy. The primary section provides step-by-step disassembly instructions for complete access to internal mechanisms. It covers removal of filter ring assemblies, shutter speed indicator rings, exposure resistor band assemblies, speed cam mechanisms, and other critical internal components. Each procedure is supported by annotated photographs revealing the shutter front assembly, multiple retaining rings, shutter front plate, and diaphragm indicator ring configurations. Additional sections address mechanical assembly procedures, lubrication points and specifications, component identification for internal mechanisms, and comprehensive reassembly guidance. The document serves as both a troubleshooting resource and a maintenance manual for restoring Copal SVE shutters to factory specifications.