Category: depth of field


By , April 24, 2010 7:20 pm

The aperture controls how wide the iris of the lens will open when you take a photo. A smaller f/number means a larger aperture opening, and the smaller fractions represent faster shutter speeds. These are called f-stops and an f-stop is a fraction that gives you the diameter of the aperture. The f stands for the focal length of the lens and the slash means divided by, and the number represents the stop in use. The aperture is a hole that lets light into the camera. You, the photographer can control how much light you let in. The aperture also affects the sharpness of your image. This is where depth of field comes into play. You decide just what you want in focus- everything or just one part of the image.

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