The Graslon Spark is a new flash diffuser that helps make pictures taken with the built-in pop-up flash more pleasing. By creating a larger light source with a series of internal mirrors, the Spark reduces overblown highlights and softens shadows enabling users to take further advantage of the built in pop-up flash.
The Spark pop-up flash diffuser will work with most DSLR cameras, simply slide it into the hot shoe mount and take pictures as normal. The Spark will not inhibit the normal triggering of the flash and does not require that you change any settings. It's a great option when your in a hurry and also makes an excellent backup if you lose your external flash.