How Fluorescent Lens Filters Work

Updated April 17, 2017

Camera lens filters are lenses used in photo or video shoots. The lens filters vary in colour, shapes, sizes and purpose. A fluorescent lens filter is a type of camera lens filter designed for daylight or fluorescent lamps.

Balance Light

Fluorescent lens filters improve picture quality by correcting the green or blue cast created from daylight or fluorescent lamps and increasing colour saturation.


There are three main types of fluorescent lens filters: FL-W, FL-D and FL-B. FL-W filters correct casts from warm-white or white-type fluorescent bulbs. FL-D filters correct casts from daylight fluorescent bulbs. FL-B filters correct colour balance in tungsten films. FL-B can also be used to correct green casts from warm-white or white fluorescent bulbs.

Protective Cover

A fluorescent lens filter also serves an alternative purpose. The lens filter can be kept on the camera to protect the camera lenses from dust and scratches while the camera is not in use.

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About the Author

Based in Michigan, Sally A. Coldfeather has been writing policy and politics-related articles since 2002. She served as a writer and copy editor for the Michigan "Democratic Dispatch," and received an employee award from the Michigan Democratic Caucus. She holds a M.P.A. in public service and leadership, and a Juris Doctorate.