How a Camera Uses Light
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To produce an image that is neither too light nor too dark, photographers must allow in just the right amount of light. A digital camera sensor reads the incoming light, and photographers control it by changing settings, according to professional sports photographer Jerry Lodriguss on his website.
Sports Considerations
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Lighting affects sports photography like nothing else, although photographers cannot control the conditions, Lodriguss pointed out. Using a fast shutter speed, good sports photographers stop the action -- a pitcher's arm in mid-toss, a gymnast in a leap -- which is difficult in low light. Some sports allow a flash, but it often does an insufficient job. Harsh sunlight, on the other hand, can cause shadows and overexposure.
Setting the Camera
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In poor lighting, setting the camera becomes crucial, including learning the correct shutter speed, ISO -- or light sensitivity -- and F/stop -- or opening to light. Slow shutter speeds let in more light, changing the F/stop by one stop either cuts the light in half or doubles it and the ISO setting also gives further control over light.
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