Professional filter dedicated to outdoor photography (long exposure times) and/or DSLR filmmaking to reduce the depth of field
True neutrality due to the excellent consistency of the transmittance in the visible and infrared spectrum
Up to 3 Nuances ND filters can be stacked together without color cast
Multi Layer Coating with metallic alloy film on both sides of clear glass - this coating process produces a true neutral image, free from infrared contamination (flat curve)