The Graslon Insight Accessory Amber Dome Lens is an accessory designed exclusively for the Insight flash diffuser, which fits Canon EOS, Nikon, Sony, Metz, Olympus, Pentax, Sigma and many other external flash units for cameras. The diffuser already comes with an interchangeable front lens, but this amber dome lens gives you another, and allows you to warm the flash. The lens' tint gives the flash's light a color temperature matching that of the tungsten lighting often found in banquet halls, ballrooms and similar venues. This helps your flash-lit subject to match the background context for a more natural look. The dome lens will also spread the flash's light to take advantage of bounce off of walls and ceilings when available.