KMZ Zorki 6

Zorki 6

The KMZ Zorki 6 is a Soviet 35mm coupled-rangefinder camera produced from 1959 to 1966. It combines an M39 screw lens mount with lever film advance, a hinged rear door, a fixed take-up spool, mechanical self-timer and separate flash connections for electronic flash and flashbulbs.[1][3]

The camera developed the basic concept of the Zorki 5 into a more practical and reliable body. Its hinged back made film loading easier, while the internally repositioned rangefinder coupling removed a mechanical weakness associated with the earlier model.[1][4]

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History

Development and Production

The Zorki 6 entered regular production in 1959, although prototypes had appeared during 1958. Official KMZ records list 385,207 cameras produced through 1966.[1][2]

The camera shared major body and shutter components with contemporary KMZ single-lens reflex cameras, particularly the Kristall and Zenit-3M family. This component standardization reduced production costs while giving the Zorki 6 a more modern hinged-back body.

Relationship to the Zorki 5

The Zorki 5 and Zorki 6 have similar upper housings, lever film advance, combined finders and simplified shutter-speed ranges.

The Zorki 5 remains a bottom-loading camera with a removable baseplate. The Zorki 6 replaces this arrangement with a hinged rear door and fixed take-up spool, making loading faster and less error-prone.[1][3]

The Zorki 6 also adds a mechanical self-timer. These changes are substantial and externally identifiable, so the Zorki 5 and Zorki 6 should remain separate main models.

Shutter and Flash

The horizontal cloth focal-plane shutter provides B, 1/30, 1/60, 1/125, 1/250 and 1/500 second. Unlike the Zorki 4, the camera has no dedicated slow-speed mechanism.[3]

The shutter-speed selector can be adjusted with the shutter either cocked or released. It should not be forced directly across the unmarked interval between B and 1/500.

Two cable flash sockets are provided. The X connection triggers electronic flash when the film gate is fully open. The M connection introduces the ignition lead required by single-use flashbulbs. Flash should be used at 1/30 second or slower.[3]

The accessory shoe has no electrical centre contact.

Viewfinder and Rangefinder

The optical viewfinder and coupled rangefinder are combined in one eyepiece. The finder has approximately 0.6× magnification, diopter adjustment and no projected framelines.[3]

Its fixed field corresponds approximately to a 50 mm lens. Wider or longer lenses require an external accessory finder.

The physical rangefinder base is 67 mm, considerably longer than that of many earlier Zorki cameras. This provides relatively strong focusing accuracy despite the finder’s moderate magnification.[3]

Dimensions and Weight

The factory manual gives a width of 135 mm, height of 80 mm and depth of 70 mm with the standard lens in its operating position.[3]

A measured body is approximately 37 mm deep and weighs about 555 g without a lens.[5] Complete-camera weights around 640 to 670 g normally include an Industar-50 or Jupiter-8.

The main specification therefore uses the official width and height together with the measured body-only depth and weight.

Lens Kits

The factory manual lists three standard lens options:

• Industar-50 50 mm f/3.5, collapsible or rigid
• Industar-26M 50 mm f/2.8
• Jupiter-8 50 mm f/2

The Jupiter-8 was particularly common on export cameras. The included lens should be stored as listing metadata and not included in the main camera name.[3]

Combined Variants

Early prototypes appeared in 1958, including a rare white-covered version carrying the experimental name Complex. Early regular-production cameras can also have white covering or metal-effect painted top and bottom plates.[4]

Standard cameras normally use black synthetic covering or black vulcanite. Production variations include different KMZ logos, nameplates, synchronization symbols and rear export markings.

Early cameras use pictorial flash symbols. From approximately 1962, many export and later-production cameras use the international X and M markings.[4]

Both Cyrillic Зоркий-6 and Latin Zorki-6 nameplates are documented. These markings, coverings and flash-symbol variations should remain combined under one main page.

Serial Number Information

Regular serial numbers are year coded, with the first two digits identifying the production year. Normal production prefixes range from 59 through 66.[2][4]

Documented examples include:

• 590000052, early white-covered production camera
• 590000831, early black-covered version
• 600022494, common Cyrillic version
• 620016396, export version with X and M markings
• 650052091, later Cyrillic version

The 1958 prototype Complex is documented with serial number 58000052. Prototype numbers should not be included in the regular production range.[4]

A continuous factory start-to-end serial range has not been established.

Identification

A standard Zorki 6 has a hinged rear door, lever film advance, fixed take-up spool, combined finder, self-timer and two flash cable sockets.

The similar Zorki 5 lacks the hinged back and self-timer. The Zorki 4 has a removable rear shell, slower shutter speeds and a different finder and synchronization arrangement.

Recommended listing metadata includes exact_variant, production_period, nameplate_language, flash_markings, covering, export_version, included_lens, self_timer_condition, flash_sync_condition, rangefinder_condition, shutter_condition, accessories, case_included and body_only_or_kit.

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Sources

• [1] ZENITcamera Archive. The Zorki Camera Line. https://www.zenitcamera.com/archive/zorki/index.html
• [2] ZENITcamera. KMZ Camera Production Data. https://www.zenitcamera.com/catalog/cameraproduction.html
• [3] KMZ. Zorki-6 Description and Operating Instructions, 1960. https://www.zenitcamera.com/mans/zorki-6/zorki-6-eng.html
• [4] SovietCams Archive. Zorki-6 Classification. https://ussrphoto.com/sovietcams/indexfb64.html?_m_e_id=25&_menu_i_id=216&tmpl_id=183&tmpl_into=middle
• [5] Geokubanoid. Measured Zorki 6 Camera Body. https://en.pinkoi.com/product/ZmJuDept