I transformed circular bokeh into heart shapes using a homemade aperture disc that I made using sticky tape and black paper ...
Bokeh is a photography term that’s a bit difficult ... To block out all other light, [Matt] added aluminum shrouds on either side of the screen, which also serves to mount the lens and a camera.
Most film cameras take 35mm film, which is equivalent to a "full frame" image sensor ... camera closer will start to reduce light sources to beautiful "bokeh balls". Bokeh camera settings ...