Nikon D300, Nikon AF-S 200-400mm f.4 VR + 1.4x
This was a nice foggy morning on Lake Logan in the Hocking Hills region of Ohio.
Someone came up to me while I was shooting and asked, "Why are you taking pictures when it's so foggy? You won't get any good shots". I told him that I look for fog as it creates a really nice mood and can differentiate your shot from the throng of other people's shots of the same subject.
