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Praktica FX3. Praktica BC Praktica Motor Drive. Praktica VLC. Thread mount cameras. Praktica VLC2. The ground Fresnel section of the viewfinder is not meant to be used for focusing. Depth-of-field indication The depth of field is determined by means of the depth-of field scale 31 arranged on the right and left of the red index on the lens mount.
While the value of the camera-to-subject distance figure stands opposite the distance mark, the limits of the range of definition can be read from the distance scale above the numerals on the depth-of-field scale, which latter are equivalent to the diaphragm numerals of the lens.
As an example, the illustration shows a zone of sharpness from 2 m to 5 m 7 ft. Persons with defective eyesight may work without their spectacles on by having a corrective lens corresponding to their long-distance glasses fitted into the eye cup which is then attached to the ocular mount see Section "Accessories".
For infrared exposures the focusing point has to be slightly modified. By rotation of distance setting ring 14 , the distance reading which, after focusing, stands opposite the distance mark, has to be moved to meet the infrared dot next to that mark.
Thus, the image produced by the infrared rays is brought into correct in relation to the film. Before releasing the shutter, please note the following: 1.
Make sure that the shutter release is unlocked see Section D 2. If the signal is visible in the left side of the viewfinder, the camera is not ready for exposing. The shutter has to be wound! Depress the shutter release steadily -- never with a jerk past the soft-running limit, where the automatic exposure system is switched in, until the shutter runs down.
After the exposure, the signal on the left side of the viewfinder image becomes visible again, a sign that the shutter has to be wound.
Delayed-action releasese The delayed-action mechanism is wound by moving lever 2 upwards as far as it will go. By means of pressure on knob 3 it will start and after about 10 seconds the shutter is released.
The delayed-action mechanism may be tensioned either before or after the shutter is wound. Also, the shutter can be released in the usual manner by means of release knob 4 , even if the delayed-action device is tensioned. When the exposure counter 13 indicates the maximum number of frames obtainable with the film in the camera 12, 20 or 36 exposures the film has to be re-wound and taken out of the camera.
Depress rewind release knob 26 in the base plate of the camera It will remain locked in this position. Unfold rewind crank 6 out of rewind knob 5 and rotate it, not too quickly, in the direction of the arrow. Rewinding at too great a speed may cause electrostatic charge and static on the film. As rewinding is completed, greater resistance becomes noticeable until the film is disengaged from the take-up spool. After this, the crank turns quite easily.
Fold the rewind crank back into the knob and pull the knob upwards as far as it will go. Remove the cartridge with the exposed film from the cartridge chamber. Loading a new film, and subsequent winding of the shutter, cause the rewind knob 26 to spring back automatically out of its click-stop position.
Should you have attempted to expose more frames than the number marked on your film packet, the winding lever might, at the end of the film, get jammed so that it cannot be swung around completely. Do not, in such a case, use force, as this might cause damage to the perforation of the film, or the end of the film might slip off the spool inside the cartridge.
Rewinding would then be impossible. If the winding lever as described above has not been fully tensioned, this must be completed, and the shutter released, after rewinding and removing the exposed film and before inserting a new one.
You take hold of the lens body, as shown in the illustration below, and turn it in an anti-clockwise direction. The exchange lens is inserted accordingly and screwed tight. The name of the lens is added by "electric". Furthermore, these lenses are recognizable by three contact pins visible at the rear end of the barrels.
But you may also use the ordinary PRAKTICA lenses with this camera, in which case metering has to be performed with the lens stopped down to taking aperture. For details please refer to Section H. List of interchangeable lenses: 1. Lenses permitting electric transmission of diaphragm values. Lenses not permitting electric transmission of diaphragm values. When the flash unit is attached to the camera, the electric connection between camera and unit is automatically effected by means of the center contact 8 in accessory shoe 7.
No synchronization cable is required. Modern flashbulb and electronic units are equipped for this purpose with a suitable co-operation contact. The ignition circuit is closed only as long as the shutter runs down and is open after the shutter has terminated running-down and during the tensioning procedure, so that flash bulbs can be exchanged also before the shutter is wound.
The knob for setting the shutter speed has to be moved to the flash symbol setting next to "B". The guide number The diaphragm numeral to be set on the lens mount for flash exposures can be found with the aid of the "guide number". Manufacturers of bulbs and electronic flash units give these guide numbers on the wrappings or in the instructions for use as required for the various sensitivity grades of the negative material.
The correct aperture is determined by dividing the guide number for the flash in use by the flash-to-subject distance figure in metros. Formula for the flash unit attached to the accessory shoe of the camera: P. Exchanging the power source. The exposure meter system is powered by a Mallory battery of the PX 21 type. There are exact replacement batteries available for this camera. The battery compartment 27 is on the under side of the camera.
It is opened by lifting the plastic lid by means of its handle piece. To close the battery compartment, attach the side of the lid opposite the handle to the corresponding side of the compartment and depress the lid on the handle side until it clicks in.
Owing to the low consumption of current during the period of reading, with normal use of the camera, the battery should be exchanged after about two years, only. Perfect functioning of the camera depends very largely on proper handling and careful maintenance. The camera must, above all, be protected against shock and impact, dust and moisture. That is why the Eveready case should be used wherever possible. From time to time the cartridge chamber and spool chamber, also the film track and camera back with film pressure plate must be cleaned with a soft brush.
But be careful not to exert pressure on the steel blades of the shutter nor to touch them with your fingers. Neither should the optical parts lens, eyepiece of viewfinder, mirror be touched with the fingers. Should this have happened accidentally, any fingerprints must be removed immediately with a soft cotton cloth after a soft brush has been used to remove any possible dust.
The mirror should be dusted only in urgent cases with a very soft brush. Never clean, or by any means apply abrasives to the precious metal pins on the lenses, the means of electrically transmitting the diaphragm values, or to the three precious-metal coated contact paths in the camera.
The contact points are automatically cleaned in the process of exchanging lenses. But also here, any dust which may have accumulated has to be removed with a soft brush. If due to the battery in the battery chamber a thin white layer has deposited, the latter can be removed with a soft cloth. Do not interfere with the mechanism of the camera. Repair work should be carried out only by one of our special Repair Workshops. Accessories The various accessories make the single-lens reflex camera universally applicable and help to open up many New fields of activity.
For longer exposure periods involving the use of a tripod, and also in photomicrogrophy and for reproductions, it is indispensable. For long time exposures a cable release with locking device should be used.
Lens Hood Eliminates disturbing flares in counterlight photography and protects the lens surface in rainy weather from getting wet.
The lens hood must fit the image angle of the lens. Filters These are screwed into the filter thread of the lens mount. Angle Finder This finder is also attached to the ocular mount of the camera. It is rotatable and thus permits a convenient choice of any viewing direction.
The angle finder reveals the complete finder image and is equipped with a dioptre scale. The eye cup keeps out extraneous light during focusing. Though my current issue is not covered. Concerning the use of contact cement for removing the discs, I considered in the past using hot-melt instead. I did not try it so far. But freeing the discs again should be more easy, just use a heat gun, scrape them off with something smooth and clean them with some solvent. May 12, 8. Last edited: May 12, May 13, 9.
Very helpful!! As said, I thought about those holes, seen at extracted parts. But I thought they all where covered by the mirror box frame. In general inspection likely they vanished from my sight in the shadow of the mirror box. And seemingly I did not look again In my sample the threaded ring got somewhat loose in its upper part. Something I yet only can experience with long lenses mounted, due to leverage. What may be a point in checking bodies!
Last edited: May 13, Dec 9, Yesterday, I finally decided to open my Praktica L2 to find out what was wrong with its defective frame counter. I found out that the Reset Pawl was on the wrong side of the metal disk which caused the frame counter mechanism to constantly reset. Note: On the image below, I've properly re-positioned the Reset Pawl.
Also, you might have noticed that the frame counter reset way too far, 6 frames too far to be more precise. This is a factory defect, the frame dial was incorrectly glued to the gear of the frame counter. I didn't want to risk breaking the gear by separating it from the frame dial to reglue it.
I've worked around the problem by simply firing the shutter twice, then rotated the part with the white arrow to align it with the 1. Last edited: Dec 10, Dec 10, I have an LTL3 which has a light leak.
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