Vertical Photographic Coverage Obtainable with Varying Film Format, Film Footage, Lens Focal Length, Altitude, Overlap, and Sidelap

摘要

Two tables are presented that make it possible to obtain an estimate of the linear and areal coverage obtainable on 25 feet of 70mm film using a vertical camera equipped with one of three specified focal length lenses, at altitudes ranging from 500 feet to a maximum of 21,000 feet, with or without overlap on successive exposures, and with or without sidelap between successive runs of the mission.