Pixco Pop-Up Flash Diffuser Cover In white Color FD-32 For Nikon The diffuser is used to create exposures of even density over the entire surface of film. Flash straight on if without our diffuser causes the light to go forward only and creates a harsh shadow behind the subject. This fits cleanly over the head of your existing flash, no need for cumbersome attachments, hooks. It helps to reduce hard background shadows and eliminates the annoying red eye effect. Compatible Nikon: D100, D200, D300, D300s D700, D3, D3s, D3x, D40, D40x, D50, D60, D70, D70s, D80, D90, D5000, D3000, P80, etc.