Originally developed for the movie industry, to meet the exacting requirements of the film world’s leading cinematographers, the cine versions of ProGlass filters have been used on a number of major feature films and TV dramas, and are widely acknowledged as being the highest-quality neutral density filters available today. So, what makes them so special? Firstly, and most importantly, they are truly neutral. As a result, colour casts are a problem of the past. And, because they block both ultraviolet and infrared pollution, images are crisp and punchy, and above all, accurate. Manufactured from 2mm-thick glass. Reduces exposure by 4 stops