Introducing the Tilta Illusion Magnetic VND Adapter for Circular Polarizer Filter This Variable ND Adapter can be magnetically connected to the Illusion Magnetic Circular Polarizer Filter to create a Variable ND Filter. It can be adjusted between 1 and 5 stops, allowing users to keep consistent exposure when lighting conditions change unexpectedly. When higher ND is needed, this same adapter can be used with an alternative version of the Illusion Magnetic Circular Polarizer which starts at 5 stops of ND. This allows users to control their VND between 5 to 10 stops when needed on bright sunny days. Cinema-grade Full Spectrum (FS) coating delivers low reflectivity and even light transmission, preserving the true color of every scene. NOTE: This Filter Adapter cannot be used without an Illusion Magnetic Circular Polarizer (sold separately)