The Tiffen 4 x 4" Low Light Dispersion glass filter is popular with cinematographers.nnThe Low Light Dispersion (LLD) filter has the same tint as a traditional #85 yellow filter (The #85 series will produce natural colours when shooting with tungsten film outdoors). However, it is used instead of the #85 in low light scenarios as it does not require the 2/3 stop light loss of the #85.nnThis filter opens up shadows whilst adding notable warmth to the image.nnnSpecifications:nn- Type: Low Light Dispersionn- Size: 4 x 4" / 101.6 x 101.6 mm (0.2" / 4 mm thick)n- Filter Factor: Does not require the +2 compensation that a regular #85 filter requiresn- Effect: Reveals detail in shadows; adds warmthn- Application: Cinematography; anywhere the photographer needs less contrast without sacrificing film sensitivityn- Construction: glass