Singh-Ray Lucalox Filter - High-pressure sodium vapor street lamps are one of the pitfalls of photographing after dark. Used to light many city streets, sodium vapor lights are amber with strong, difficult to correct, emissions in the green, yellow and orange region of the spectrum. Singh-Ray Lucalox filters, named for the GE sodium vapor lamp, are the only tools available that yield faithful color reproduction of these scenes.
Note:
Lucalox filters are formulated for use with Ektachrome Tungsten (Type B) film