Today is a special post about shooting in unique weather conditions - specifically, fog and rain.
Fog is basically a low-lying cloud of moisture that can make for some interesting and moody shots if you're prepared for the opportunity. Long exposure photography pairs especially well with fog because the LED lights create the most spectacular glow:
Location: PCH - Big Sur, CA / Settings: (Composite of 2 images) Light art at F.9, ISO 100, 133 seconds. Rain at F2.8, ISO 1600, 15 seconds.
The challenge here is that moisture and electronics don't mix very well, and fog can move quick - getting a good shot without damaging your camera is going to take some quick work on your part. I recommend setting your camera up on a tripod before-hand and keeping it in your passenger seat so it's ready to go at a moment's notice like in the case above.
Location: Salt Point State Park, CA / Settings: F.8, ISO 100, 24-70mm, 171 seconds
Bring your killer katana umbrella, a good wet-weather jacket, and don't forget the lens-wipe. In addition, you could weather-proof your camera with something like a Hurricane Hood - it's a bit overkill for me in Los Angeles, but I'd definitely rock one in the Pacific Northwest (or wherever these type of weather conditions are common).
Location: Central Valley, CA / Settings: F.10, ISO 100, 124 seconds
Another thing I like to do as a camera-safety precaution is to keep little silica bags from new shoes that I purchase - every time I get a new pair of black shoes, I throw those silica bags right into my camera bag for immediate re-use - they absorb moisture - they're small and totally necessary.
Location: Malibu, CA / Settings: F.8, ISO 100, 585 seconds