Specifications: The diffuser is used to create an exposure of uniform density over the entire surface of the film, use the diffuser by placing it flush with the front of the lens and exposing through it, try it and see the difference. Flash mounted with our diffuser and tilted 45 degrees creates a soft light wrapping effect with soft shadows behind the subject, it spreads the light over a wider area for a softer, more balanced, and natural effect. This fits perfectly into the head of your existing flash, no need for cumbersome accessories, hooks, light passing through the diffuser and hitting the film will create a uniform density on the film surface. The flash, without our diffuser, turned on directly would cause the light to travel only in compatible directions and create harsh shadows behind the subject. Compatible: Compatible with Canon: 580EXII, 580EX, 550Ex, 540EZ, 430EZ, 420EZ, 430EX, 420EX, 380EX, 520EX, 300TL Compatible with Nikon: SB24, SB25, SB26, SB28, SB28DX, SB50DX, SB80DX, SB800, SB600, SB900 compatible Minolta: 5600HS, 5600HS(D), 3600HS(D),3500xi, 5400HS, 5400xi, 52000D series, basically all brands on the market are available. The color may differ slightly from the picture. Due to different manual measurements, please allow slight size differences. Package includes: 2 flash diffusers (other accessories are not included)