The HC-DS811 from Falcon Eyes is a metal honeycomb for your DS-811. With a honeycomb you can direct the light more forward. The dimensions are 34x28 cm. The HC-DS811 is completely made of metal and finished in black.
When you use the DS-811 for exposure in photo or video, in some situations you want the light not to spread too much. For this you can use the HC-DS811 as an aid. For the DS-811 there is also a valve set available, which can be found with the optional accessories of the DS-811.