The Brilliant 4×5.65/138mm Variable Neutral Density Filter is designed to fit in 4×5.65″ matte boxes, occupying 2 slots in the matte box. It is constructed using two 138mm linear polarisers. One of the polarisers rotates and the other is fixed.The handle has a standard 1/4 20 thread to allow mounting a motor for fade effects. If the motor is synchronised with the lens aperture a variable depth of field effect can be achieved.
TECH SPECS:
ND Levels: 0.6 (2 Stops) – 2.4 (9 Stops) NB: Requires two filter trays
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