Graslon Insight Flash Diffuser with Snap-On Dome Lens Fits Canon, Metz, Nikon, Olympus, Pentax, Sony, Sigma &amp; many other flash units Dual mirror system guarantees a larger light source before diffusion Included dome diffuser spreads light evenly to take advantage of bounce surfaces Professional quality won't look out of place with expensive photography gear Secure, easily-removed, no-adhesive mounting system