Neutral Density Filters Pt. 1
The Lee 'Big Stopper' is a kind of super neutral density filter which cuts out 10 stops of light - that's about 20 times less light entering your camera than without it.
But why on earth would anyone want to reduce the amount of light and make the world a darker place?
If you're into shooting landscapes cutting out light can help you create some beautiful and dramatic effects like this 'misty looking' water.
Because the Lee Big Stopper cuts out so much light you do have to be careful when working out your your exposure and make sure you get it right. Your camera probably won't be able to meter through it so you have to set it manually. But don't worry - with a little bit of know-how it's easy as eating cheese!