So one day I read that the shape of your aperture determines the shape of your bokeh, so I set out to explore this further. I cut out a bunch of cardboard circles, cut different shapes into these circles, and stuck these circles in my lens. Sure enough, the bokeh matched the shape of the hole, however, what I found to be interesting was to play around with a pin-hole cut into the cardboard, mimicking the effect of a pin-hole camera. It must also be noted that because I’m not the best at cutting out circles there was some light leaking in from the edges of the cardboard. This is one of the pictures I took with this “pin-hole” camera.