كاميرا كونتاكس الجديدة ( ma 137 ) كوارتز .. مجلة فن التصوير اللبنانية _ ع١٨

The new Contax camera (MA 137) quartz

In the field of recent productions of cameras, we shed light on the new camera from Contax, which came to the market under the name (MA 137) quartz, reviewing all the operations carried out by this camera, after it harnessed a small computer device to serve its operations!


The Contax MA 137 Quartz Camera includes all the features of the MD 137 Quartz -

Including automatic aperture priority, integrated drive, Contax flash (TLA) system and AE lock, and a unique electromagnetic-release shutter. In addition to all this, the Contax MA 137 features attractive manual exposure control, with a faster and more powerful micromotor that allows for acquisition of triggers down to three feet per second, along with a two-stage shutter release button,

Display viewfinder information as the shutter releases, and a crank to rewind the newly designed film that slides out of the area of ​​exposure to damage while not using the camera.
The maximum weight of the camera is 765 grams, including the 45mm f/2.8 lens. The upper page of the camera is completely different from most known reflex cameras (SLR). This has adopted the utmost experience to make this camera
Easy to use, as a few minutes of instructions can suffice to get used to them, even if the photographer is not experienced in this field.

On the left side of the upper page of the camera are the exposure dial, the film rewind lever, and the shutter setting dial. As for film speeds, the camera is equipped to polarize speeds between 12 and 3200 aza.
required.

Speeds from one second to 1/1000 of a second are also available for the shutter speed, in addition to the signals (B) and (X), which are equipped to work at a synchronization speed of 1/60 of a second.

There is also a sign (8), which means automatic operation. When the camera works on this basis, the electrical circuit will secure the correct exposures by choosing the appropriate shutter speed. When using Contax flash units (TLA), the flash is automatically locked through the lens, responding to all aperture locations used for the lens, and the optical compensation disk should be placed on (1) for manual photography, and if this is not done, you may not get the correct exposure.

In terms of the design of the camera, we find the shoe of installing the flash on top of the pentaprism with connections for the direct flash and others for the Contax series of self-contained flashes (TLA class). When the camera is used with these last flashes, the expression device works automatically. To the right of the prism is the main adjustment dial, which may seem complicated at first glance. But it proved easy when practice.
There is a precise lamp located near the stop sign (off) that emits a red light when the camera is turned to the work site. It also means that all electrical circuits are working correctly and at the same time the LED lights appear within the viewfinder, and the energy saving device works to turn off the lamp and the rest of the lights automatically. After th no
It can then be re-illuminated only by lightly touching the shutter-release button. This lamp is additionally used as a self-timer indicator and when the small dial on the side of the main setting dial is turned to (S - T) or, self-timer and shutter-release button bag, the lamp starts flashing alternately with ( (Another red LED) is located at the front of the camera body, and so on, without an audible signal. Both the camera user and the subject know that the self-timer is on, during the ten seconds. When the language of the film reaches its end, the lamp starts flashing repeatedly to warn the photographer. It also doubles its flashes as a warning of a malfunction. In the event of film tangles and similar cases of other defects.

In front of the main dial there is a small lever with a pendulum that covers the film rewind button.. Next to this lever there is a minute dial bearing signs indicating (-) for self-timer, (C for continuous operation, and (S) for single operation, all of which are printed in white and are located next to a window Film counter with numbers 12, 20, 24 and 36 according to the measurements of the films used.

In addition to the prism, there is a small dark window that provides light to the exposure meter inside the viewfinder and under the prism another window that lights up indicating the aperture in the viewfinder. As for the information of the viewfinder itself, it covers everything that is going on in the camera by means of 17 (LED) indicating the speed used for the shutter and the overexposure. And two signals for ready or after flash, (LT) for long-term exposures and (B) for lighting. To the left of the viewfinder is a red (LED) indicating that the compensatory exposure is in use.
The Contax camera contains a SPID cell for light expression. Its weight is concentrated in the middle, and in the case of automatic operation, the camera will automatically select the appropriate shutter speed, while allowing the photographer during the nomadic operation to choose the speed himself.
As for the camera's electric motor, it is a wonderful technical achievement that works clockwise and counterclockwise to open and close the lens pupil, raise and lower the lens, advance the film and recharge the shutter curtain. This motor works through a microcomputer that is timed with quartz, and when the shutter button is pressed, it sends a signal to the motor, which raises the mirror and closes the diaphragm until the desired opening. At the end of the process, the motor stops, the first curtain of the shutter moves, and the device works to stop the electro-magnetic work if a correct exposure is obtained. And as soon as the second curtain finishes its journey, the motor receives another signal that turns it clockwise, which lowers the woman, opens the pupillary diaphragm, advances the film to the next frame, and rewinds this shutter. The power for this whole technology is provided by four (88) batteries that slide into a holder in the winding motor, which is powered by power. Volt and on a single-shot or continuous launch basis.