The Lee Filters Tungsten Fluorescent Polyester Set is a three-filter set to allow for shooting under fluorescent lighting when shooting tungsten-balanced film.
In addition, there is a range of lighting filters that balances flashlight, too. These are essential because all light entering the camera must be of the same spectral output as the fluorescent source, if the result is to be corrected accurately.
Polyester FL3600-B
Exposure: ⅔
Balances 3600K warm white tubes for 3200K Tungsten Film.
Polyester FL4300-B
Exposure: 1
Balances 4300K white tubes for 3200K Tungsten Film.
Polyester FL5700-B
Exposure: 1⅓
Balances 5700K cool white tubes for 3200K Tungsten Film.
Each polyester filter in this set is mounted in a frame designed to fit the 100mm System.