The shutter speed determines the film or sensor exposure time.
Camera lenses and film by controlling (sensor) mechanical shutter "an open a hop" two actions to control the shutter speed, thus controlling the exposure time. For example, the shutter speed to 1/125s means the camera sensor (film) exposure of 1/125 sec. Electronic shutter and similar mechanical shutter, but it is by controlling the photodiode sensor to control the shutter speed. Some digital camera shutter is a mechanical shutter and electronic shutter.Shutter speed in seconds to score form, usually faster shutter speed was at the level of the slow shutter speed at 1/2 that the exposure time by half.
For example, 1/2s, 1/4s, 1/8s, 1/1/15s, 30s, 1/60s, 1/125s, 1/250s, 1/500s, 1/1000s, 1/2000s, 1/4000s, 1/8000s, etc. However, the slow shutter speed is usually expressed in seconds, for example, 8s, 1s, 2s, 4s.Shooting environment determines the most appropriate shutter speed.
But here there is a small Tip: use the "1/focal length" seconds more shutter speed can effectively prevent camera shake and blur. When the shutter speed value lower than this, please use a tripod or with optical stabilizer lens or camera. If you want to use the camera "freezing" of an action (for example in sports photography), shutter speed of at least 1/250s or even more. However, not all "moves" filming needs high speed shutter. If the user wants to shoot a movement of the car, you can shoot through the camera follow (camera movement and the same vehicle moving relative velocity), the movement of the car remains in the viewfinder. This not only allows the user to use a slower shutter speed shooting, and able to take out the background of dynamic blur effect, increase screen dynamic.This picture to 1/500s shutter speed shooting, solidifying the spray dynamic posture.
To 1/125s shutter speed shooting, causing the background to follow dynamic fuzzy, speed sense.
Associate professional-level and professional-grade digital cameras typically provide a shutter priority mode that allows the user to maintain exposure constant change shutter speed.
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