Haida S New Proii 2 In 1 Cpl Vnd Lets You Control Polarisation Separately From Neutral Density
Variable ND filters aren’t exactly a new thing. Neither are polarisers. In fact, without polarisers, variable ND filters wouldn’t even exist. Pretty much all variable ND filters are the result of cross-polarisation, stacking two polarising filters on top of each other with their relative angles to each other controlling the light that goes through. As such, all Variable ND filters are also polarisers. But most have one big problem. You can’t rotate the polarisation....