How to make DV lens filter paper

First of all, it includes polarizers, glass substrates, thin-mode transistors, alignment films, liquid crystal materials, guide plates, color filters, fluorescent tubes, etc. Different color tones can be the effect of adding filters. It can also be the result of post-production, placing the colored half of the splitter mirror on top and making the dividing line fall exactly on the horizon. At this time, it is often necessary to fix the camera on a tripod so that the dividing line accurately falls on the horizon, so that the sky light is filtered by the filter.