The Exposure Triangle

In the session on the Tuesday 5th October 2021 I learned about The Exposure Triangles. The aperture, shutter speed, and ISO make up the three sides of the exposure triangle. They work together to produce a photo that is properly exposed. If one variable changes, at least one of the others must also change to maintain the correct exposure. For more information on this topic, you may which to check out our detailed summary of exposure.

In photography, a stop refers to the doubling or halving of the amount of light that makes up an exposure. Each photo that we take requires acertain quantity of light to expose it correctly. Adding a stop of light by doubling the exposure will brighten an underexposed image. Conversely, decreasing an exposure by one stop (halving the amount of light) will darken an overexposed image. To add to take away a stop light, we need to change the aperture, shutter speed, and/or ISO.