Neutral Density Filters
Variable ND Filters can adjust the intensity of incoming light beam to be transmitted by rotating along its centre axis. The spectrum passes through will continue to maintain its neutral spectrum energy distribution.
Simtrum provides a variety of Variable ND Filters such as: Circular Continuous ND Filters, Rectangular Continuous ND Filters, Circular Stepped ND Filters, Rectangular Stepped ND Filters, Radial Continuous ND Filters, Mounted Circular ND Filters, etc.
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