- Дата: 21-05-2022, 23:49
The sprocket drum have to be in a position to maneuver freely and rotate backwards when the movie is re-wound and subsequently has to be decoupled from the top and backside gear train. There are two gear trains deployed within the shutter. When the release is depressed, as well as freeing the mirror the movement is transmitted via a rod that runs the width of the digital camera and through several levers to the levers T and G, as the shutter is launched lever T is raised and G is moved to lock the wheel IL in preparation for meeting the cam of the speed dial (instantaneous speeds) or lock the blind motion in the case of 'T' and 'B' settings. The slit width is adjusted by continuing to wind the shutter as soon as the decrease blind has reached the highest, which pulls by means of the extra size of tape required. To release the shutter the pawl is moved clear of the wheel.