Yes I have, I have had somewhat of a success, but still not up to par with everyone else up here.
I am wondering if my ND is not dark enough.
Or your water's not moving enough;p that is to say, it can take a LONG time to get that effect on a lake, much less time on a seashore. Plus, what time of day you're shooting at, just before sunrise or just after sunset, for example, you can get some nice long exposures.
My biggest problem is trying to get water all smooth, I have read and read and still can only come up with bright pictures and , well not a lot.
What strength ND are you using?
I've got a frankenstein setup that I use for mine. Two polarizers and an ND4 (two stops). I turn the rear polarizer to get max reduction, then turn the front polarizer to darken the frame as much as it will do. I get about 8 stops with it, enough for 30 second shots in full daylight.
I just happened to have filters that I could put together, and it works well enough, though it gives a wicked magenta color cast.
I wasn't able to get a good custom WB on this one, and I couldn't the colors right, so I left them.
