Exposing The Relationship Between Shutter, Aperture and Depth Of Field

S

silver

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knocked up a not too technical page about some of the internal bits & bobs inside a camera and how they effect the way the image looks :)

From the first cameras with glass slides and a pinhole for a lens to the present high-tech cameras with 'digital film', not much has changed. The camera captures an image because the light in a scene is focused onto a light sensitive recording medium, that's all there is to it! Read on anyway as there's some other stuff that might be useful.
Click to expand...

more @ http://www.thoughtattic.com/photography/exposing_tutorial.html :)

Sil
 
added a few more pictures to illustrate different things :)

Example image which makes use of a small aperture (and wide angle lens) to keep the foreground and background in focus.
Click to expand...
tkmax_dof.jpg




Example image which makes use of a large or wider aperture (and a telephoto or zoom lens) to deliberately blur the background.
Click to expand...
squirrel_dof.jpg




Example image which makes use of a slow shutter speed to introduce motion blur and isolate the subject by panning the camera with the moving car as the shutter is released.
Click to expand...
car_motion_blur.jpg



:)

Sil

PS, squirrel shot has been used @ http://wiki.ehow.com/Create-Those-Amazing-Blurred-Background-Photo-Portraits :)
 
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