Example image: https://i.imgur.com/CxAznjX.jpg
In: 0
In art it’s called atmospheric perspective. It’s the actual atmosphere and whatever is in it, oxygen, particles, smog, fog, etc showing the distance between the objects.
Even clear days there is water in the air. Moisture and humidity.
The farther you look the more you are looking through.
It looks foggy because fog literally is water vapor.
In a sense all air in different thickness of fog or cloud.
Supplements the existing answers: It’s why observatories are often on mountains, to reduce the amount of obscuring atmosphere and get the clearest image.
“atmospheric perspective” us what artists call the phenomenon of distant objects appearing blurry and with less tonal range. it’s due to the layer of air (which contains dust, etc) between the objects and the viewer.
Latest Answers