There are so many good places within my town to shoot rapids & waterfalls. After the rainstorm we had over the night, I crossed the bridge into New Hampshire to get the lower rapids beneath the train bridge (beside an old mill). There is an excellent vantage point to shoot from behind the mill. Great solid, dry place complete with a parking lot. I took a few shots without an ND filter, one with a 1.8x and a few with the 3.0 ND filter on. I settled on this one wiht the ND 3.0 filter. I normally jump to the ND 3.0 and then struggle to get any kind of focus. Today, I gradually worked my way down, setting the MF without any ND filters then tweaking lightly after each filter change. With the ND 3.0 there is very little light coming through, so AF is impossible. It is also very tough to Manually Focus as you can't see anything. I might head back and use my 70-200 tomorrow and go for a slightly different composition.