We talked about the real use of Shutter Speed and Aperture In lesson 1 and 2. Remember:
We also said that both shutter speed and aperture has an impact on light or the brightness of your photo. The bigger the number of either, the less light will get into your camera, and the photo will look darker. Conversely, the smaller the number, the brighter the photo.
Hang on! That means that if I want to freeze movement (big shutter speed number) but sill have a big depth of field (big aperture number) then my photo will be too dark!
Luckily, that's not true. In our next lesson, we will talk about ISO which is used to solve exactly that problem.