Zorki-4 is a 35 mm rangefinder camera, manufactured by Krasnogorsky Mekhanichesky Zavod (KMZ) , (Красногорский механический завод = Mechanical Factory of Krasnogorsk), near Moscow, former USSR and produced between 1956-73, quantity 1715677. ЗОРКИЙ = Zorkiy, means Sharp Sight. Zorki-4 was possibly the most popular of all Zorki cameras. The Zorki-4 was also the first of the Zorki cameras to be exported in large numbers to the west.