1) The diffuser is used to create exposures of even density over the entire surfaceof film. Use the diffuser by placing it flush against the front of the lens andexposing through it. The light that passes through the diffuser and on to thefilm will create an even density across the surface of the film. Flash straight on if without our diffuser causes the light to go forward only andcreates a harsh shadow behind the subject. The flash with our diffuser installedand tilted at 45 degrees gives a nice soft wrap around of light with a soft shadowbehind the subject. This fits cleanly over the head of your existing flash,no need for cumbersome attachments, hooks. Try us and see the difference. It dispersesthe light over a wider area for a softer, more balanced and natural effectthan you didn't use before.2) Material: plastics3)1pcs/high qualified pp bag

flash diffuser