These are absolute beauties. Most cube beamsplitters are made of two right angle prisms, one input and two outputs. This one is made of 4 precision glass right angle prisms polarized in such a way that if you send a white light/image thru you'll get outputs in blue, green, and red. Or, you can send in 3 separate images to combine them into one. Cube is 35mm x 35mm x 35mm. Has a plastic mounting with mounting holes. You can really get creative with this one. Like new condition. Clearly was an expensive piece to make. Limited supply.
