I’ve used poly-boards, bounce-boards, and even white sheets and white walls as lighting modifiers to soften the light in the past, but arguably the quickest and most efficient way to instantly achieve beautifully soft light, is the V-Flat.
What is a V-Flat?
In its simplest form, a V-Flat is 2 large sheets of white board joined together on the long edge. Imagine two regular white doors hinged together at the sides and it’s this resulting ‘V’ shape that allows them to stand by themselves without the need for further stands and supports. Fancy V-Flats are even black on the other side and the ultra-supremo ones are even foldable for storage too!