REVIEW ACTIVITIES:VOCABULARY: click links for detailed glossary page:- APERTURE: an opening in the lens that changes in size to control the AMOUNT of light passing through the lens of the camera.
- APERTURE PRIORITY MODE: an automatic camera mode where you set the camera's aperture and the meter will set the shutter speed for correct exposure.
- DEPTH OF FIELD: the distance between the nearest and farthest objects in a scene that appear acceptably sharp in an image.
- STOP: A stop is a doubling or halving of the amount of light let in when taking a photo
- F-STOP: A fraction that measures of the size of the aperture opening on a camera.
- IRIS: The part of a lens mechanism that can expand and contract to control the amount of light passing through a lens.
- ISO: A system used to measure and adjust how sensitive a digital camera is to light.
- RECIPROCITY: when you ADD a "stop" of light entering the camera with one of the camera exposure controls (i.e. shutter), then BALANCE it by taking AWAY a "stop" of light with the other (i.e. aperture)
- SHUTTER: The device on a camera that opens and allows light to pass to the sensor or film for a set period of time in order make an exposure.
- SHUTTER SPEED: the length of time a shutter remains open as measured in seconds or fractions of a second.
- SHUTTER PRIORITY MODE: A camera shooting mode that lets the photographer define the camera's shutter speed and the camera will then set the aperture for a correct exposure based on its light metering.
- NOISE: (Digital Noise) Visual distortion consisting of tiny grainy colored pixels or specks in photographs taken in low light situations with high ISO.
- MANUAL MODE: A mode where the photographer can control all camera settings (Shutter Speed, Aperture, ISO, WB, Flash, etc.)
- METERING: It is the process of measuring light with a light meter to determine the correct exposure. Cameras meter at 18% gray.
- EXPOSURE COMPENSATION: A camera feature to allow the user to adjust the automatically calculated exposure.
UNIT RESOURCES:
P043 EXPOSURE TRIANGLEP043 EXPOSURE TRIANGLE
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