Digital photography is cost effective but I rather shoot film when I see photos like this. I would image the foggy effect is from glass where the outside temperature is colder than the inside. So the photographer was looking outside from some type of glass like a car window. The sunlight mixed with some fog creates the bright highlight on the center to the right side. Perfect lighting for this effect.
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Photo by Patatero taken with Lomo LC-A+ RL loaded with Agfa CT Precisa (35mm 100 iso) film