Revar Cine 138mm Wormhole Filter 50mm Center Window

Revar Cine Wormhole is a large diopter apporoximately the size of a +3 diopter with circular etching to create a unique effect. There is a center flat polished window to allow selective focus in the center of frame. This version has a 50mm cetner window for wider focal length lenses. Made from Schott B270 glass to the highest tolerances.