Re: Photography
The shape of the bokeh is a result of the shape of the opening through the aperture blades, so the most legit way to get hexagonal bokeh is to use a lens that has 6 aperture blades, ideally not rounded. There are ways to cheat it, though. Since the bokeh resembles the shape of the hole through which the light is traveling, you just need to change the shape of the hole. Theoretically if you put a piece of paper in front of the lens that has a hexagonal opening in it, you should get hexagonal bokeh; there are even kits you can buy that let you do all kinds of crazy shapes this way. Keep in mind, though, that it's going to do all kinds of crazy things to framing and exposure, so you'll have to mess around with it a lot.