The only differences between this camera and the Zenit-4 are the labeling and the standard lens. The Rubin-1 zoom lens was available as an accessory for the Zenit-4 but standard on the Zenit-6. The Zenit-6 came in a large black leather case which had no markings. The camera fit in the case with the lens down. The case had a compartment on each side for accessories. There were a yellow and an orange filter, a cable release, a lens cap, an accessory shoe and a waist level finder provided as standard accessories. Voigtlander Bessamatic lense are compatible.
Produced: 1964-1968
Name: „Зенит-6“
Producer: KMZ
Frame size: 24x36
Lens: Vega-3 2.8/50.
Rubin-1 2.8/37-80.
Shutter: 1s-1/500s + B.
Quantity: 8.930 units. (sovietcams.com)
Interestingly enough most were engraved in English, perhaps in anticipitation of foreign sales! Nathan Dayton