yeah, I've tried that technique (maybe I didn' t take enough shots), it worked to an extent but no where's near as good as a long exposure. They have variable dial in ND filters available now where you can dial in A range of stops of darkness like 3 to 10. They are expensive but less than buying a bunch of single stop ones..
R.G. wrote:
Glad you enjoyed working on it. I haven't got the ND filters for proper long exposure shots. Maybe it's my next big adventure......
A technique that I've had recommended to me for waterfalls and streams is to take multiple exposures in "Continuous Shutter Release" mode and then blend or merge them together. I've tried it on a waterfall and it worked well, and I can't see any reason why it wouldn't work well on waves. But for proper smoothness it'd need a long exposure.