What's everyone's experience for the most useful ND values for long-exposure, daylight-exteriors such as seascapes, waterfalls, and rivers? Since variable ND filters are prone to banding and 'X' patterning, I decided to go with several single-value ND filters instead (used individually, not stacked). For the most useful values, I just made some quick calculations and took a guess at what I thought may be the most useful: 10-stop, 6-stop, and 4-stop (I'm buying a range of two to three filters). My photographic goal is that often-seen, "misty water" effect. My primary subjects will include ocean waves shot from the shore, and waterfalls shot from various distances, all shot with a Nikon D800E, using various lenses. Here's the filters I'm considering (buying all three): 1. B+W 77mm 3.0 ND 110 (10-stop ND); $105.00. 2. Hoya 77mm Pro 1D 64x (6-stop ND); $70.45. 3. Hoya 77mm Pro 1D 16x (4-stop ND); $62.95. The Hoya pro-series seem to be pretty well-reviewed with many claiming little to no color cast; however, Hoya doesn't make a 10-stop ND filter, so I chose the reasonably priced B+W 10-stop ND. Reportedly, the B+W ND filters are among the worst at leaking IR, causing a magenta color cast (which apparently all brands do, to some extent). This effect is also reported to be more severe with Canon bodies than with Nikon bodies. At least two users reported that the cast is easily corrected, and/or white-balanced for. One reviewer claimed the fix was very difficult using Photoshop, but did not indicate the brand or model of camera he was using. All that aside, again, I'm looking for the most useful values, (and I plan on buying as many as three different values), not necessarily specific brand recommendations (although welcome, if so inclined). These are for use in Hawaii during the summer months, which often has a mix of direct, sunny daylight, partly cloudy daylight, and overcast daylight. Thanks for any replies!