I use it as a light shaper, mostly to stop light falling on bits of the scene I don’t want to. It’s basically like flexible, reshapable barn doors. Actually I just ran out, I should buy another roll- the last one lasted me at least a decade. I like that it is possible to attach it to almost any light fitting with a bit of bending and pushing or at most a clothes-peg or a bit of gaffer tape.

You can also cut holes in it and put it over the front a hard light to cast interesting shadows, that’s not really my lighting style but it works well with something like a Fresnel spotlight or a reflector on a flash head if you want to have some streaks of light across a background or something. (You need to be a bit careful of heat buildup with continuous tungsten lights but it is fine for LED and flash).

Cheers, Hywel