RoscoVIEW camera filters utilize the same polarizer as panels, only in photographic glass. Used in the RoscoVIEW rotator or standard mattebox, they provide the camera side component of the RoscoVIEW system to control exterior exposure. These filters are the same quality as any photographic filter on the market and can be used with confidence by any camera person. They are available in a number of standard sizes. Custom filter sizes are possible with sufficient notice. Sizes available: 6.6" x 6.6", 4" x 5.6", 4" x 4", 138mm round and an 82mm round in a threaded rotating ring.