SmallRig 4x5.65 ND1.2 Filter 3589 Key Features: 1. Supports 4x5.65 matte box system. 2. Double-sided multi-layer nano-coating, with uniform linearity of extinction spectrum. 3. Made of excellent SCHOTT B270 optical glass from Germany, without damaging image quality. 4. Waterproof and oil-resistant coating. 5. High-accuracy color reproduction at moderate color temperature.
eBay