Learning Adventures #2

Here today ladies and gentlemen, in an easy to understand format, are a few of the secrets of the photographer. (God Bless Wikipedia) It seems that unless I'm learning stuff while trawling the internet for hours during my job, I fall asleep too quickly.

Aperture: The aperture defines the size of the opening in the lens, which in advanced cameras can be adjusted to control the amount of light reaching the film or digital sensor (CCD or CMOS). In combination with variation of the shutter speed, and variation in film speed (ISO), this will regulate the photograph's degree of exposure to light. Typically, a fast shutter speed will require a larger aperture to ensure a sufficient exposure to light, just as a slow shutter speed will typically require a smaller aperture to prevent excessive exposure to light.


The first image is taken with a low aperture and a low shutter speed, the second with high aperture and high shutter speed.


If you look at the fullsize version of this image, you'll see that the aperture is set to f/11. The depth-of-field scale (top) indicates that a subject which is anywhere between 1 and 2 meters in front of the camera will be rendered acceptably sharp. If the aperture was set to f/22 instead, everything from 0.7 meters to infinity would be in focus.

Anyway that's enough for now, I'm gonna go off and learn more.

-Fin-