Krasnogorsk-3 - "Kalashnikov" among amateur movie cameras

The Krasnogorsk-3 (Красногорск-3) is a 16-mm windup camera (Фотокамера) made in the former Soviet Union. The name "Krasnogorsk" comes from the suburb of Moscow where the plant is located.
The K-3 has been adopted by many film schools, including the University of Southern California's School of Cinema and Television.