Snow tends to fool the camera sometimes, it's not as bright as your camera thinks it is. All that reflected light fools the meter.
Your camera's meter probably wants to make the snow 18% gray. Of course, you want the snow to be white, so you have to our think your camera. If you have manual control, increase the exposure about one stop. Most digicams have a + / - exposure control, so try a few shots at different settings and see which looks better.
If you are photographing people, you will probably need to use your flash.
With digital, you have to be careful not to blow out the highlights. If your camera has a histogram, check it for winky-blinkies, or see if the scale falls off to the right, which indicates over-exposure.
Filters? A polarizer will make the blue sky pop and may reduce reflection somewhat. A TTL meter will automatically increase exposure to compensate for the filter.
Your camera's meter probably wants to make the snow 18% gray. Of course, you want the snow to be white, so you have to our think your camera. If you have manual control, increase the exposure about one stop. Most digicams have a + / - exposure control, so try a few shots at different settings and see which looks better.
If you are photographing people, you will probably need to use your flash.
With digital, you have to be careful not to blow out the highlights. If your camera has a histogram, check it for winky-blinkies, or see if the scale falls off to the right, which indicates over-exposure.
Filters? A polarizer will make the blue sky pop and may reduce reflection somewhat. A TTL meter will automatically increase exposure to compensate for the filter.