Camera Exposure

1. Aperture Setting

1.1. controls the area of light which passes through camera lens

1.2. f-stop value: stopping down; opening up

1.2.1. when f-stop halves, the light are quadruples

2. iso speed

2.1. determines how sensitive the camera is to light coming in

2.2. higher ISO speeds dramatically increase image noise

2.3. low iso speed (low image noise)

2.3.1. high iso speed (high image noise)

2.4. common ISO speeds: 100. 200, 300, 400, and 800

3. Camera Exposure Modes

3.1. digital cameras

3.1.1. auto

3.1.2. program

3.1.3. aperture priority

3.1.4. shutter priority

3.1.5. manual

3.1.6. bulb

4. understanding exposure

4.1. time

4.2. setting

4.3. shutter speed

5. Shutter Speed

5.1. determines when the camera sensor will be open or closed to incoming light from the camera lens.

5.2. the speed affects the picture; for example, speed may make the picture more blurry

6. exposure triangle

6.1. aperture: controls the area over which light can enter your camera

6.2. ISO speed: controls the sensitivity of your camera's sensor to a given amount of light

6.3. Shutter speed: controls the duration of the exposure