The function of camera shutter

The camera shutter has the following functions:

1 has the function of accurately adjusting the exposure time, which is the most basic function of the camera shutter.

2. The shutter speed should be high enough to shoot at high speed or effectively control the depth of field.

3. It has the function of long exposure.

4, with flash synchronous shooting function.

5. It has a self-timer function, so as to open the shutter during self-timer or long exposure without releasing the cable.

The working principle of the shutter is as follows: in order to protect the photosensitive device in the camera from exposure, the shutter is always closed; When shooting, after adjusting the shutter speed, just press and hold the shutter release button of the camera (that is, the camera button), so that the light passing through the camera lens can be correctly exposed between the opening and closing of the shutter, and the light can enter the photosensitive device through the shutter and be written into the memory card.