A rather interesting effect, for daylight. Note texture of water.
Some time ago, I went out hunting for a variable ND filter in anticipation of a beach trip. (I know, most people buy a swimsuit or sunglasses, but I’m a photographer; sue me.) What I found was a little troubling. Not only were the locally available options hideously expensive, but they also weren’t multicoated – this brings about an obvious set of flare related problems given the environments (sunny) under which they’d be used. I thought I’d get creative instead.
Ming Thein | Photographer 