Sand on an ND Filter Made a Nice Bokeh Effect on This Long Exposure Photo

During one of our routine rounds on Reddit's photography threads, we spotted a post by Brandon Nguyen on r/photocritique asking for thoughts on one of his long exposures taken at Lake Tahoe. There doesn't seem to anything out of the ordinary about that at first, except for that bit about sand making a "neato bokeh effect" on his shot. 

sand filter made nice bokeh effect long

2018-7-11 16:00