NOTES: This text is identical to the one in the Instruction manual, English version. Corrected and converted to HTML in 2004.
The Instruction Manual contains essential principles of "Zenith-C" camera operation. To avoid possible breakage of the camera and to obtain good pictures thoroughly acquaint yourself with the construction and operation of the camera as it is described below. GENERAL FEATURES The "Zenith-C" is a mirror type 35 mm film precision miniature camera possessing all the merits of up-to-date cameras. It is recommended for use by amateurs to photograph landscape, portraits, groups, separate sport scenes, etc.
The camera is furnished with a curtain-type shutter giving automatic exposure speeds ranging from 1/25 to 1/500 sec. The "B"-hand exposure setting is employed. The camera mechanism makes long "T" (originally: "Д" -- Cyrillic "D") exposure possible. The shutter is coupled with both the film advancing mechanism and the automatic film counter, so that winding the shutter automatically transports the film after each exposure and the film counter indicates the number of exposure taken.
Fig. 1 1 -- camera lens; 2 -- swivel mirror; 3 -- plane-convex lens with frosted plane surface; 4 -- penta-prism; 5 -- triple-lens eyepiece; 6 -- film plane The snap-shot counter dial 9 is set at zero by rotating its knurled end in either direction. The number of exposures is read off by means of black pointer 10 engraved on the upper side of the camera. Set the counter at zero with the shutter wound up.
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Fig. 3.
When it is possible to photograph objects of considerable depth or a number of objects at different distances, reference to the depth of field scale which will cover objects at both positions. After focusing, this scale shows the limits of the depth of field for the diaphragm scale setting used. The depth field ranges from the diaphragm scale figure on one side of the indicator to the same on the other. For instance, suppose the lens is focused for a distance of 4 m with a diaphragm setting of 16.
at the same time opening the slit in the magazine. To open the bottom cover, turn the latch ring 28 counter-clockwise so that the arrow on the latch points to the engraving "Open" (originally: "откр." -- an abridgment to Cyrillic 'открыто' -- open). Then open the cover. Magazine 36 (Fig. 5) and take-up spool 30 are fitted loosely into the camera and can be easily removed. Filters to be used with this camera should have mounting thread size of 33x0.5 mm and an external diameter of 36 mm. Fig. 5.
Fig. 6. 31 -- magazine case; 32 -- magazine cartridge; 33 -- magazine spool; 34 - magazine button; 36 -- magazine After this, continuing to hold the spool with its head inwards, rotate it counter-clockwise, winding the film with its sensitive side inside. Wind the film tightly onto the spool. Note. The film should not be tightened by holding the spool and pulling the film by its free end as this may scratch the sensitive layer as a result of friction between the turns.
Fig. 7. 30 -- take-up spool; 36 -- magazine; C -- film track; S -- take-up spool spring 1. To engage the camera mechanism, turn the release button 11 and the ring 7 until their points coincide with point on the camera top surface. 2. Test the operation of the camera winding the shutter by turning the knob 8 and releasing it by pressing the button 11. Take a look through the eyepiece to see whether the mirror system is working properly. 3. Then, open the button cover and take out the take-up spool 30. 4.
7. Replace the bottom cover, press it down tightly and give the latch ring 28 (Fig. 4) one-half turn clockwise. The latch arrow should then point to "Close" (originally: "закр." -- an abridgment to Cyrillic 'закрыто' -close). The magazine slit automatically opens freeing the film, as the lock is closed. 8. To deliver an unexposed portion of the film to the negative window, wind up the shutter tree times, pressing the release button 11 after each winding.
5. If necessary, attach a filter.. 6. Open the lens opening fully by turning the front lens ring 21 until it stops. Just before taking a picture it is necessary: 1. Wind the shutter by turning the shutter winding knob 8 in the direction of the arrow as far as it will go. 2. Determine the required exposure speed and set it with the exposure setting ring 12 as indicated before. 3. Adjust correct focus by turning the knurled ring 19 and viewing the image of the object through the eyepiece 5. Note.
7. Wind the shutter and release it by pressing the release button 11. After this the camera is ready to be reloaded. CARE OF THE CAMERA The camera is a precision instrument and should receive careful and intelligent handling. Keep the camera in its carrying case, isolated from dust, dampness and dirt. Do not subject the camera to sudden and extreme temperature variations.
"Industar-22" or "Industar-50" lens Lens covering cap Take-up spool Magazine with spool Leather carrying case with shoulder strap Cable release Instruction manual and certificate of inspection CONTENTS General Features -- 5 Specifications -- 8 Camera Construction -- 9 Magazine Loading -- 16 Camera Loading -- 18 Taking the Pictures -- 23 Camera Unloading -- 26 Care of the Camera -- 26 Camera Set -- 30