Aperture

Your aperture also will show you if your photo you have taken is over or under exposed on any level. Overexposed is too light and Underexposed is too dark.

Over

This photo you see to the right is overexposed because of of the white background. If it was just right, you would be able to see the clouds behind and above the buildings.











Under

This photo you see to the right is underexposed because of of the darkish colors it has. If it was just right, you would be able to see the different textures and beautful colors.











Under

Here is a reference sheet for your Aperture.