Within their limits the Robots did an excellent job of sequence photography. The standard 38 mm "f/"2.8 Xenar lenses were extremely sharp, even by today's standards, and zone focusing worked well on rapid action with short focal length lenses. The reliable motor drive was as fast, if not faster, than later electrical drives, and there were no batteries to run down. Flash could be used at any speed. The square frame was big enough, with modern films, for 8 × 10" or greater enlargements, and 50 pictures could be taken on a standard 36-exposure roll. The cameras, especially the later ones built to industrial standards, will take much abuse and still keep functioning.