When you have a dedicated flash unit, adding some accessories can help you can get the most out of it, resulting in even more creative and artistic photos. Like nearly every other piece of photographic equipment, a flash unit has accessories that go with it to enhance the effects. The following items will help modify the flash, and avoid problems in your photos, such as harsh or unattractive lighting. Flash accessories give you subtle, but highly effective means to change the quality, direction and photographic effects of your standard flash.