6mm ringsight. This genuine concentric rings Newton Sight offers the ultimate in precision camera sighting. The polarized, optical eyesight produces a special Newton interference pattern (a bulls-eye effect) that enables you to aim your cameras, quickly and precisely at the target. The genuine Newton Ring Sight ensures precision sighting while also helping to correct for camera/eyesight parallax.
Please Note: This is a 6mm ringsight and can only be used with 6mm Swivel Clamps and Holder For Ring Sight. (Sold separately.)