domenica 22 gennaio 2012

Diaphragm - Alanna



In photography a diaphragm is the structure that houses the aperture in the center. The main purpose is to adjust or stop the flow of light allowing it to only pass through the camera’s aperture (located in the middle of the diaphragm). An easy way to understand this concept is to use the human eye as an example. The iris is the eyes natural diaphragm; helping our eyes adjusts to different levels of light. The diaphragm is necessary in both traditional photography as well as digital photography and has been used throughout the history of photography

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