Automatic camera with constant-view mirror, electronically controlled shutter, interchangable lens with jumping diaphragm.
Camera was meant to be used with film system Kodapak, vertial stretch film. Sported a Flashcube socket. Automatic system of rotating the flashcube sides. TTL-meter.
Date of development - 1974, camera was not manufactured.
Shutter speeds:2 -- 1/1000 s, B and AUTO;
Power source - 2xAA batteries.
Size: 134x95x54mm without lens.
Source: KMZ
http://www.zenitcamera.com/archive/zenit-pak/index.html