Petri 7S Circle Eye System 35mm Camera with Telephoto & Wide Angle. Released by Japanese camera maker Petri in 1962 and produced until 1973, this Petri 7s is a 35 mm fixed-lens rangefinder camera that was an improved version of the Petri 7 introduced a year before. An advanced camera during its time, it has an around-the-lens(ATL) selenium cell light meter that can read light values of 7 - 17. The camera is also equipped with an additional match-needle display visible both in the viewfinder and on the top plate and a coupled rangefinder.r. The camera has the 45 mm f/2.8 lens, which can accept 52 mm screw-in filters. Please note the cracked glass on the range finder lens (see picture). Specification Brochure and User Manual included.