Vintage Soviet KGB Spy Camera NAILON. A few history: In 1975, the Krasnogorsk plant began to produce a camera with the strange name “Nailon”, which was based on the “Ajax-12″, but already had a new lens with a built-in light meter on a photoresistor and a new central shutter with electronic control. The lens of the new camera was focused at a constant distance of 7 meters. With a pre-set aperture (2.9 5.6 and 16) it was possible to achieve a distance range of field from 1.3 meters to infinity.. Camera is in working order.