When James (Jim) Johnson retired from a 25-year career as a software developer for IBM, he had already been working as a contract technical editor for Microsoft. After his retirement, technical editing and technical writing became his primary source of income to cover the cost of his 'toys'-most of which were computer equipment and photographic equipment. Jim's involvement with cameras began in the mid '50s when he needed to record the interior of caves in Kentucky. At the time, the greatest challenge was to provide adequate illumination, and in a manner that did not defile the cave, thus he p...