USING EXPOSURE COMPENSATION
Add in some positive exposure compensation so that bright, white scenes are captured accurately
Left to its own automatic devices, a camera meter will try to record as much detail as possible in a scene – especially in the highlights. Normally, this is what you want, but with a very bright background of snow, this means the meter will generally underexpose, rendering whites as dull greys. Dial in a stop or two of positive exposure compensation to ensure your scene is correctly exposed, reviewing the histogram of the images to check that whites aren’t being clipped on the right.
Positive exposure compensation means the snow in this scene is white instead of grey.