The Landscape Photography Book

And, You’ll Probably Want an ND Filter

If you want to get silky smooth waterfalls and streams, and smooth streaky clouds above your epic landscapes (provided, of course, that the clouds are moving at a relatively quick pace), then you want the other of the two neutral density filters, simply called an “ND filter.” ND filters are dark, so they force your shutter to stay open longer than it normally would in bright shooting conditions, so things that are moving in your image (like water going over a waterfall) get that silky smooth look (there’s more on how to use these in Chapter 6). By the way, with ND filters, the entire surface of the filter ...