Thursday, March 10, 2011

Shutter Speed















1. Slow shutter speed results a silk-like water pattern(f/20 at 1/2 seconds)
2. Fast shutter speed results a freeze water pattern(f/7.1 at 1/80 seconds)


Shutter speed represents the time that the shutter remains open when taking a photograph.The shutter speed scales engraved on the shutter speed dial of conventional camera bodies with a shutter speed ring or via some flickering digital numerals on the LCD screen like: 1/8000, 1/4000, 1/1000, 1/500, 1/250, 1/125, 1/60, 1/30, 1/15, 1/8, 1/4, 1/2, 1 or -1, -2 etc. are essentially indicators of the duration at which the shutter curtain opens up and closes during an exposure process. A 1/125 setting means the shutter curtain open and close within one hundred and twenty five of a second while 1 means an one full-second the shutter opens up during exposure to absorb the available light source onto the film to form an exposure. Fast shutter speed enables a few amount of lights enter the lens while slow shutter speed enables much amount of lights enter the lens which results in underexposure and overexposure, respectively. In order to obtain a balance exposure, the aperture plays the role to balance it. Fast shutter speed captures freezing subject and for the slow shutter speed captures blurry subject.

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