March 2011
Intermediate to advanced
272 pages
4h 57m
English
Content preview from Chasing the Light: Improving Your Photography with Available Light
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The Fundamentals of Exposure
Every camera uses three elements to control exposure: shutter speed, aperture, and ISO. Yes, your camera may have a wealth of other bells and whistles, but shutter speed, aperture, and ISO are at the heart of everything you do with your camera. They impact every photograph you make.
Shutter speed
Your camera has a shutter that blocks the light path from the film (if you’re shooting with a film camera) or the sensor (if you’re shooting with a digital camera). Every time you push the button to take a picture, you’re releasing the shutter. The shutter moves out of the way, allowing the light to make the photograph.
Shutter speed is measured, for the most part, in fractions of a second. Most cameras offer a range of ...
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