sale Sirui Soft GND4 (0.6) Filter - 100x150mm Key Features: 2mm thickness can be used with Sirui 100mm Square Filter Holder Soft GND to balance uneven exposures between the sky and forground German manufactured Schott Plate Glass B270 Protection Coating (waterproof, oil-resistant,... $249.00 $249.00 $197.00 Choose Options