Thursday, October 16, 2014

Predicting Fog

Fog and mist are superb elements in landscape photographs. But how do you know when and where to look for it?

It is actually easier than you might think. When days are relatively warm but nights are cool, fog generally forms on water and in low lying areas. These conditions often occur in spring and fall. The trick is to arrive on the scene around sunrise, before the temperature rises and the fog dissipates.

This particular morning was chilly and breezy. The fog was blown around by the wind and the scene kept changing, with more or less of the mountains showing in the foggy conditions.    

In changing conditions, shoot as many images as you can since these sorts of scenes are rarely repeated on a different day. Each day is different, and you want to maximize your chances of getting those great shots when you can.

Exposures can be dicey because often fog or mist is brighter than it might appear to your eye. Your camera's meter should do a reasonably good job of nailing an adequate exposure, but be sure to check the histogram every few shots to make sure the whites are not too bright and the darks are not too underexposed.

Shutter Speed 1/400 sec.  Aperture f/9.  ISO 400.  Lens: Canon 70-200mm f/4L IS, set at 98mm.  Camera: Canon 5D Mark III.  Handheld.

TODAY'S QUOTE: "Most consequential choices involve shades of gray, and some fog is often useful in getting things done."  -- Timothy Geithner

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