Flash photography is always a challenge, and I find that the flash leaves any subject pale and the background in shadow. I designed this diffuser based a project I found where the idea was to use a box with tissue paper or baking parchment to soften and spread the light. This model is my evolution of that. It allows one to adjust the layers of diffusion material for your purpose. Simply sandwich your diffusion layers between the clamp and body and clamp securely using 4 x 10mm M3 screws.