User manual HARTBLEI ZENIT122

[. . . ] Clean the optical coated lens surfaces with a clean soft cloth or cotton wool wad slightly moistened with rectified alcohol or ether. The surfaces of the mirror and the focusing device may be cleaned only if absolutely necessary with a dry soft brush but in no case with humid cleaning agents. Do not remove the lens from the camera without need to prevent dirt and dust from getting both onto the surfaces of the lens optical parts and into the camera itself. If you don't use your camera for some period of time (a month and more) remove the batteries from the camera. Load and unload your camera either indoors or in shade protecting it against direct sun light and bright artificial light. [. . . ] When taking pictures at "B" the shutter remains open for as long as the release button 5 is pressed down. To obtain a long exposure turn the depressed release button counter-clockwise as far as it will go ("T" position). The exposure over, return the release button to its normal (middle) position and release it. To take a picture at "B" or long exposures one is recommended to use a cable release which can be screwed into the release button thread. STOP SETTING Set a selected aperture against the index mark by turning the aperture setting ring 32. When taking pictures with a self-timer, the procedure of stop setting is somewhat different as described in the section "Operating the Self-Timer" 2. 5. FOCUSING The camera viewfinder is provided with a composite focusing device consisting of microprism collar and ground glass collar or focusing wedges, microprism collar and ground glass collar. Looking through the viewfinder turn the lens focusing ring to obtain sharp image of the object within the ground glass and microprism collars and for cameras with focusing wedges to match the upper and lower parts of the split image. The best sharpness is obtained when focusing is done at full aperture. It should be noted that the focusing wedges and microprism collar, ensuring the best possible focusing, are of no use when low speed interchangeable lenses are used and focusing is done at apertures more than 4. In these cases as well as in photomicrography and macrophotography focusing should be done on the ground glass collar. To do this turn the focusing ring and, making use of distance scale 27, set the distance from the film plane marked -o- on the camera top plate to the subject being shot against the larger index mark. The smaller index mark with letter "R" is used for shooting on infra-red films. In such a case you focus the image and introduce a correction by bringing the distance figure you have obtained opposite to the index mark "R". Focusing over, you can determine distances from the film plane to the near and far limits of the depth of field making use of scales 27 and 28. On scale 27 against two identical figures of scale 28 corresponsing to the aperture with which you are going to take pictures there will be set two figures, indicating the distance range within which all the subjects will be sharp on film. For example, the lens is focused for 3 m and the aperture to be used is that of 8. In such a case on scale 27 against two figures 8 of scale 28 you can read that the image will be sharp within the distance range of 2. 3 to 4. 5 m. Approximate depth-of-field limits can be determined visually as well by pressing the release button till a definite stop is felt with the aperture value set beforehand. On the ground glass collar of the viewfinder you will see what subjects will be sharp on film. EXPOSURE SETTING WITH THE HELP OF EXPOSURE METER The camera semi-automatic exposure meter measures the light passing through the lens (TTL system). As a result, making use of various combinations of aperture and shutter speed values, you can set the exposure depending upon the brightness of an object and the speed of film being used with a high degree of accuracy. It remains true as well when interchangeable lenses, light filters, supplementary lenses and extension tubes are used. [. . . ] The lenses with index mark "MC" are provided with multicoating of optical surfaces that ensures better protection against reflexes (halos, glares, and light spots) when taking pictures of objects with sharply heterogenous illumination against light as well as improves color rendition. If an interchangeable lens has no automatic diaphragm, the diaphragm can be handled manually. If a picture is taken with a long-focus lens, the left-hand and right-handed edges of the frame will be slightly cut off. With the help of a special stand the camera can be used for making copies of drawings, manuscripts, photographs. [. . . ]