Optima Sensor Series

The Optima Sensor Electronic series were produced between 1978 and 1983 by the German Agfa company, and initially comprised three viewfinder cameras; the 335, 535 and 1035. The model numbers were indicative of the top shutter speed, as in 1/300th, 1/500th and 1/1000th (and presumably the 35 stood for 35mm). Agfa's marketing pitch focused upon the fact their cameras were auto-exposure, and all but the base model could provide automatic exposure for a shutter speed as long as 15 seconds.