SPT - January/February 1971

Official bi-monthly publication of the Society of Photo-Technologists. This volume 2, issue 1 from January/February 1971 serves as an essential resource for professional camera repair technicians and photo-technology specialists. The journal opens with The President's Pages, featuring James Todd Amos's article titled "Thinking Things Through," which establishes fundamental principles for photographic equipment repair. The guide articulates two core principles: repair as an intellectual activity and the necessity of thoroughly understanding the intellectual process before commencing physical intervention on equipment. Supported by concrete examples, the article demonstrates how technicians must systematically approach unfamiliar cameras by first diagnosing the customer's complaint through careful examination before disassembly. Additionally, the publication features a technical contribution from Samuel L. Love, founder and former president, presenting "Comparascope Testing of Unique Focal Plane Shutters." This article addresses focal plane shutter speed measurement challenges in large-format cameras, utilizing comparascope or motion analyzer equipment with controlled light sources. Practical solutions are provided for specialized cameras where standard testing methods prove difficult, particularly for aerial cameras and similar formats requiring large test apertures. The journal includes organizational leadership information, sustaining member listings from camera equipment and testing instrument manufacturers, and subscription details for members and non-members alike.