3.Aperture

Aperture

The aperture is the size of the opening in the lens of the camera when a picture is taken. It's like a pupil in an eye. The larger the hole, the more light comes in, and the smaller the hole, the less the light comes in. Aperture is measured in f-stops, and many photographers today will refer to the aperture as "aperture value" instead of f/value. Going from one f-stop to the next one doubles it or divides it in half of the size of the hole. It is refered to as f/number (f/2.8, f/4, etc.) f/2.8 is a bigger aperture than f/22. The aperture has a big impact on depth of field. This is because a big aperture gives a big depth of field. This is because a big aperture decreases the depth of field. Most landscape pictures have small aperture setting, and portrait pictures have a large aperture. Macro photographers usually use large apertures. Related Photography





Diagrams and Illustrations



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References:

www.digital-photography-school.com/aperture @http://www.photoxels.com/tutorial_aperture.html www.photonhead.com/beginners/shutterandaperture.php

Youtube Videos:

@http://www.youtube.com/watch?v=0yoz5tW3WPc

Pictures: @http://www.pulse-oximeters-info.com/pegasusphotographic.com/wp-content/uploads/photography%20aperture%20tutorials_2.jpg @http://www.yashvinblogs.com/wp-content/uploads/2010/03/aperture_diagram.jpg @http://www.shortcourses.com/images/b4ch1/aperture.jpg @http://www.digital-photography-school.com/wp-content/DOF.jpg