SPT - 1972

Collection of technical service notes published by The Society of Photo-Technologists in May-June 1972. This publication delivers comprehensive maintenance and repair procedures for professional photographic equipment and optical instruments. Featured topics include detailed disassembly instructions for the Minolta Autopak 500 Instamatic, with step-by-step guidance on removing the exterior cover to access the shutter mechanism, flash contacts, and internal photoelectric components. Specialized repair procedures for the Viceroy Power Zoom Reflex camera address the removal of the front lens focusing element and zoom ring barrel assembly. The document provides troubleshooting solutions for the Macbeth TD 100A densitometer, specifically addressing needle drift issues on the measurement scale and optical path alignment corrections. A complete shutter speed tester project is included, featuring a comprehensive parts list of electronic components and a fully annotated electrical schematic diagram. Additionally, detailed disassembly instructions cover the Keystone Auto Instant K1010 camera, providing access procedures for the rear housing, shutter assembly, and light meter circuits. All technical contributions are authored by experienced field technicians, ensuring practical applicability and technical accuracy throughout the publication.