Understanding Shutter Speeds

Slow Shutter Speed: ISO  1600   Aperture   f/8   Shutter Speed   1/15

Fast Shutter Speed: ISO   1600   Aperture   f/4   Shutter speed   1/200

1. Shutter speed is how long the aperture on the camera is open for.
2. It works technically by exposing the mirror to light for a certain amount of time and works visually by determining how much blur and light is let into the photo.
3. Shutter speed is how long the curtains are open on the window analogy.