Polarizing Filter - EVA32049mm Thread Filter for use withx0.45 Objective - OBL001x1.0 Objective - OBL003 Related articles Infrared Filter - EVA325 x0.45 Objective Lens - OBL001 Infrared Filter - EVA323 Standard Ring-Light With Quadrant Control - ECI300 Shadow Free Large Area Ring-Light With Quadrant Control - ECI302