Here is a HDR (High Dynamic Range) photograph I took on the weekend. This photograph is made of 7 photographs giving me additional 2 stops of range. This in simple terms allows me to have the bight sun and the very dark shadows on the rock exposed correctly. Normal photography will lose either the details in highlights or shadow under such circumstances. To do this you need a very steady tripod and modify each photo from under exposure to over exposure. Then you need to assemble the photograph in Photoshop. I use another program called Photomatix, which makes this process very easy.
I have to add I have used neutral density x8 filter to photograph this rock pool against the sunrise.