Used to correct the greenish tone that appears when daylight typefilm is used under fluorescent lighting. FL-W is for use with warmwhite or white type fluorescent lamps. It is recommended thatauxiliary light sources be used whenHMC (HOYA MULTI COATED)These popular filters are renowned for their ability to minimise reflection at the filter surfaces which reduces flare and ghosting. The result is an average light transmission of over 97%, giving sharp contrast and well balanced color. HOYA HMC filters are recommended for enhancing the performance of today's multicoated lenses. With FLW FilterWithout Filter