FED-3 is a 35mm rangefinder camera made in the Soviet Union in the years 1961-1980. The Soviet FED and Zorki cameras were actually copies of the German Leica II and III cameras. FED (ФЭД ) was the first factory to mass produce cameras itn the Soviet Union and was located in Kharkiv, Ukraine.
FED-3 was an upgrade of FED-2 with shutter speeds slower than 1/25 and a few small design changes. It was also marketed as "Revue-3" in Europe.
This camera came in many variants throughout the years. This one presented here was made between 1962-1964. After 1964 the FED-3s had a film advance lever instead of a knob. It was sold with different lenses. This one has the Industar-26M 2.8/52 lens. The lens mount is the Leica's M39.
FED-3 is generally a nice camera with a good lens and the low cost makes it a good choice for photographers. It is solidly built and can take beautiful and quite sharp photos, especially if you step down the lens. It has a self-timer and can receive many accessories, such as flash.
Important things to remember:
#1 Always advance the film before choosing a shutter speed. Doing otherwise might damage the shutter and disorganize the speeds.
#2 Never attempt to turn the shutter speed dial between "30" and "1" or you will damage it. You'll need to go all the way around.
#3 Always advance the film before activating the self-timer.