This document defines and explains key photographic terms:
- Shutter speed determines how long the camera shutter is open, affecting the amount of light and whether motion is stopped or blurred.
- ISO measures the camera sensor's light sensitivity, with lower numbers being less sensitive and resulting in finer grain.
- Aperture refers to the diameter of the lens opening, with smaller apertures giving deeper depth of field but larger apertures giving shallower depth of field.
- Manual and automatic exposure modes allow the photographer to control or let the camera determine the optimal shutter speed and aperture settings.