An FL-D filter is used when you wish to correct for the greenish tone that appears when shooting daylight film under general purpose fluorescent lighting. An FL-W filter is used to balance daylight film under warm white or white type fluorescent lamps. An FL-B filter is used to correct the color balance when shooting tungsten film under fluorescent lighting.
NOTE: The FL series of filters alone does not always guarantee 100% correct color balance when shooting under fluorescent lighting. They are general purpose filters intended for moderate correction and will not, by themselves, necessarily provide perfect color rendition. Fluorescent lamps burn at many different temperatures and often require more demanding filtration for exact results. For specific filtration and professional use, it is strongly recommended that a color temperature meter be employed along with Color Correction filters (i.e.CC30M) when shooting under fluorescent lighting. This is the only proven way to achieve exact color correction.
The following system offers filter solutions to many fluorescent correction problems. Both color temperature conversion and green absorption functions are combined into one filter: the filter used depends on the fluorescent light and film type.
Lee resin filters are available in 4 x 4" (100 x 100mm) x 2mm thick.
LEE FLUORESCENT CORRECTION FILTERS WITH TUNGSTEN FILM (3200K)
FL5700-B, for Cool White 5700K:
FL4300-B, for White 4300K:
FL3600-B, for Warm White 3600K:
LEE FLUORESCENT CORRECTION FILTERS WITH DAYLIGHT FILM (5500K)
FL5700-D, for Cool White 5700K:
FL4300-D, for White 4300K:
FL3600-D, for Warm White 3600K:
The following filters offer a single filter correction from mercury vapor or high pressure sodium lighting to daylight or tungsten film depending on the filter used.
LEE FLUORESCENT CORRECTION FILTERS WITH ARC LIGHTING WITH TUNGSTEN FILM (3200K)
HPS-B, for High Pressure Sodium: (approx. exp. increase = 2 stops)
MV-B, for Mercury Vapor: (approx. exp. increase = 2 stops)
LEE FLUORESCENT CORRECTION FILTERS WITH ARC LIGHTING WITH DAYLIGHT FILM (5500K)
HPS-D, for High Pressure Sodium: (approx. exp. increase = 3 stops)
MV-D, for Mercury Vapor: (approx. exp. increase = 2 1/3 stops)