The 211 0.9 Neutral Density Filter from LEE Filters is designed to reduce the output of a light fixture by three stops. When applied, no additional coloration or contrast is created. This filter is constructed from polyester that is heat resistant to 356°F and is delivered as a 60" x 20' roll on a 1" core.
Under 3200K tungsten light, the 211 0.9 Neutral Density Filter exhibits a 0.41 density and transmits light at 11.8%. Under 6774K Source C light, the filter exhibits a 0.86 density and transmits light at 13.7%.