Bokeh, which is the out-of-focus light distortion in the background of a photo, is more and more seen as an aesthetic element of photography. This lens brings it more attention by shaping those blurs into stars, hearts, and more.
The Bokeh Filter is a physical lens that attaches to any mainstream DSLR and blocks out small pieces of light to create the desired patterns. Changing the cool blurry streetlights behind your ladyfriend into hearts? Cheesetastic. But used subtly (that would mean using no shapes that are also found in a box of Lucky Charms), this could bring a really cool element to some photos. And hell, if you're going for outright cheese, might as well do it naturally and not in the edit room, right? [Bokeh Filter via Geekologie]