The LEE Filters ProGlass Cine range of neutral filters meets the highest standards of any filmmaker and is suitable for both digital and classic films. They are absolutely color neutral (colors are reproduced accurately and faithfully) and reliably eliminate the infrared load. Made of 4 mm thick, optically flat, scratch-resistant glass, are enclosed by a metal edge and prevent shifts in focus. They are extremely durable. The products of the ProGlass Cine series are used successfully in major feature films and television dramas.