SPT - January/February 1972

This issue of the SPT Journal (Vol. 3, No. 1) published by the Society of Photo-Technologists represents the inaugural release in a specialized series of service manuals designed specifically for independent camera repair technicians. The publication focuses entirely on the Petri Color 35, a compact camera from the 1970s. The manual opens with an editorial foreword outlining the Society's mission: to provide service information written by experienced technicians rather than relying exclusively on factory manuals, which are often unavailable or unsuitable for independent repair shops. The technical documentation for the Petri Color 35 covers comprehensive operational details including: exposure control and metering system operation, shutter speed specifications with accuracy tolerances ranging from ±10% to ±50%, flash synchronization (X contact only), helical focusing mechanism, film speed settings (ASA/DIN), and the complete film transport system with detailed coverage of the wind lever operation, take-up spool drive, and rewind mechanism. The service manual includes a pre-disassembly inspection report of a reference camera unit, providing baseline data essential for maintenance and repair technicians. The documentation serves as both a repair reference and operational guide for technicians working on this particular camera model.