Thursday, January 31, 2008

Difference of Aperture,Shutter Speed and ISO

Using ISO 100


Using ISO 400
Using ISO 800
This article is about the function of Aperture, Shutter Speed and ISO. (quick reference)

Aperture
refers on how much light a camera can let in at a given shutter speed. Aperture also affects the distances that appear to be in focus when a picture is taken. This is called depth of field (DOF).

Shutter Speed
Shutter speed is the duration for which a camera can record light to take a single picture. The shutter speeds of a camera are described as a range measured in seconds and fractions of a second

Note:
fast shutter - speed gives a camera the ability to capture objects in motion and good pictures in every bright light
slow shutter - gives camera the ability to capture detailed pictures in low light


ISO
defines how film sensitivities are measured
It refers to equivalent sensitivity.

Note: A higher ISO rating means more sensitivity to light but produces pictures with more noise which is similar to pattern of film grain
.

 

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