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39. For Fill Flash pictures, the shutter blades open as shown here. The blades are set so only

visible light passes through the first photopic aperture to the photocell. Thus, for Fill Flash, exposure shutdown is based on the measurement of visible light only.


40. In a low light NEAR shot, the blades travel farther. During blade travel a very small

amount of visible light passes through the first photopic aperture. The blades move to the position shown, the strobe fires and a larger amount of infrared light passes through the infrared aperture to the photocell. Exposure shutdown is dependent upon the combination of an extremely limited amount of visible light added to the larger amount of infrared light (or on the clock time-out).




41. For low light FAR pictures, the blades travel even farther. First, there is a very small

amount of light passed through the first photopic aperture. Next, a very small amount of light passes through the infrared aperture. Finally, the blades open fully and a large amount of visible light passes through the second photopic aperture. The exposure shutdown is dependent on the measurement of this combination of light (or on clock time-out).


42. The flash may be bypassed on those rare occasions where it is not desired. This is pretty much limited to taking pictures in daylight through a window. In this condition, the flash can be prevented from firing by pressing only the back part of the exposure button. Exposure shutdown is determined by the photocell seeing 100% of the light required for a proper exposure or by the internal clock timing out at 396 ms.




43. The dark slide cycle is the same as in Pronto! type cameras. When a fresh pack is loaded

and the front door closed, S1 and S9 are closed and the solenoid energized. The S5 actuator drops, closing S5L and S5P, turning on the motor. The dark slide is ejected and the counter set to 10. The slider is cammed back by the counter, opening S1 and S9. The rotation of the timing gear lifts the S5 actuator, opening S5L and S5P. The camera is now ready for the exposure cycle.

DURING EXPOSURE CYCLE, FLASH WILL NOT CHARGE. FLASH FIRES ONLY WITH s10 < SI CLOSED.

44. During an exposure cycle, the camera electronics prevents the flash from being recharged. Also, once the flash is charged, S10 must be closed along with S1 to fire the flash. You cannot release S10 and press only S1 to fire the flash.




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