Exposing The Relationship Between Shutter, Aperture and Depth Of Field

[silver]

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.

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

Sil

 

[silver]

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.

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

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.

Sil

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