The Fed-3 (a) is a new model which keeps the old body from the Fed-2. It has a new short base rangefinder assembly with a new shutter. The shutter already has slow speeds. The range finder cam now has its axis of rotation on the rewind side and diopter adjustment is made by rotating the view finder. The engraving is either the Single Cyrillic script " FED-3" or the dual engraving on export models with "MADE IN USSR" on the back [2].