Foggy Morning
If you ever wake up to go take pictures and find it to be foggy, don’t use it as an excuse to go back to bed. Difficult shooting conditions are actually an opportunity to try something new without the expectation of success. A couple of things to keep in mind is that fog is quite bright and can fool (will fool) your meter in your camera, I found on this morning that I needed to shoot with +2/3 exposure bias to adjust the camera to prevent under exposure. The other thing to keep in mind is that fog severely cuts contrast and is the most extreme example of aerial perspective. A scene that would ordinarily be too busy can be simplified when a distracting background recedes into the mist.
So to recap , fog filter bad, foggy day good. I know I didn’t mention a filter previously I just figured it was understood. And also be careful around road ways, your not the only one having a hard time seeing.