BarnDoors for Magnum, TeleZoom and NarrowBeam Reflector.
BarnDoors are great for flagging off light and shaping the light spread without changing the light characteristics. Each set of BarnDoors has four doors. This allows you to create an asymmetric light spread. For instance, you may want a sharp fall-off on one side and a soft, graduated fall-off on the other. Not compatible with the NarrowBeam Travel Reflector.