The Zorki-4K was produced from 1972 to 1978 with a production of 524.610 cameras (Princelle also mentioned 36 produced in 1980). The 4K is fully identical to the Zorki-4, but with a rapid advance lever. In almost all cases this camera came with the Jupiter-8 lens (which is a Zeiss Sonnar clone) of very good quality. The 4K seems to be more an "export" camera. Cyrillic versions are known only in first years of production. The 4K was produced after the Mir [2].

  

Produced: 1972-1980
Name: „Зоркий-4K“
Producer: KMZ
Frame size: 24x36.
Lens: Jupiter-8  2/50.
Shutter: 1-1/30s, 1/60s, 1/125s, 1/250s, 1/500s, 1/1000s + B.

Quantity: 524.646 units.
                                                                      

Zorki-4K  #72255105.

Zorki-4K Anniversary logo "30 years of Victory".

Zorki-4K  Anniversary  #74079765.

Zorki-4K  #76734883