During Cine Gear 2019 PVC took the time to visit with Panavision to learn more about their new LCND (Liquid Crystal ND). We wanted to know how Panavision was able to show us one piece of neutral density filter with six separate stops of light blocking ND. Seeing the LCND in action gives an appreciation of new technology that looks so simple to use but probably was incredibly complicated to produce.
Originally announced at Cine Gear 2018, the Panavision LCND (Liquid Crystal ND) is closer to being an item for rental soon. What Panavision has done is make an electronic ND using an electrical charge to adjust the filter neutral density. Electronic means this Liquid Crystal ND needs power. Thankfully, the LCND can run off of an internal battery for 24 hours.
Now, I know what you are thinking, is any of this glass polarized to make the ND work this way. The answer is NO. There should be zero color shift or polarization from the Liquid Crystal ND.