Photography video notes
ISO- IOS is the light sensitivity and how much light required. Lower numbers produce bolder colors and less noise, while higher numbers produce duller colors and more noise. The IOS should be at 400 or less to work well. In digital cameras, it produces a artificial boost of signal. 

Shutter speed- The shutter speed is the length of time light hits recording media. Faster shutter speed means more light and capture faster objects. Use 1/60 or higher for people to avoid blurriness, 1/500 for moving objects, and bulb to keep the shutter open as long as you want.

Aperture- Aperture is the size of the lens opening. The wider it is the more light is let in and the less time is required to take the picture. The depth of focus runs parallel to the sensor. The thickness depends on the aperture size, the wider the thinner depth of focus. It is measured in f-stops. The lower the f number the higher the opening.

exposure- Exposure is the amount of light that falls on the media (camera). This is determined by the shutter speed and aperture.