- light and darkness plays a big part in exposure
- Mastering their use is an essential part of developing an intuition for photography.
- make sure your picture isn’t underexposed
- For example, for the same quantity of water, you can get away with less time in the rain if you pick a bucket that’s really wide
- In photography, the exposure settings of aperture, shutter speed and ISO speed are analogous to the width, time and quantity discussed above
- there are 3 settings aperture, shutter speed, ISO speed
- all settings control exposure differently
- Aperture: controls the area over which light can enter your camera
- Shutter speed: controls the duration of the exposure
- ISO speed: controls the sensitivity of your camera’s sensor to a given amount of light
- there is many different combos to get the right exposure with those 3 settings
- A camera’s shutter determines when the camera sensor will be open or closed to incoming light from the camera lens
- the shutter speed is how long the light is permitted to the camera
- “Shutter speed” and “exposure time” refer to the same concept, where a faster shutter speed means a shorter exposure time.
- bigger the aperture whole the more light
- the ISO speed is how sensitive the camera is to the light
- Common ISO speeds include 100, 200, 400 and 800
- unlike aperture and shutter speed, a lower ISO speed is almost always desirable
- when a photographer says they are “stopping down” or “opening up” their lens they are increasing and decreasing the f stop value
- unlike aperture and shutter speed, a lower ISO speed is almost always desirable