shutter
Before learning about art and composition of a photograph of
students need to know how to measure the light entering the camera. Too much
light will overexpose the image and too little light will underexpose the
photo. The light enters the camera when the shutter is open. The period during
which the shutter is open is called shutter speed.
Therefore, you should be able to see that simply by adjusting the shutter speed, you can control how the image is exposed. In a situation where the subject is illuminated by the sun, the speed should be fast enough. If the subject is illuminated by a candle, then the shutter speed will be very slow.
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