The FL-WARM (FL-W) is used to correct the greenish tone that appears when daylight balanced film is used under warm white or white type fluorescent lamps.
Both the FL-D and FL-W filters can be used to create a dramatic colorcast outdoors when the cameras white balance is manually set to daylight.
|Glass Type:||Hoya Optical|
|Number of Multi-Coatings:||6 / 3 per side|
|Hardened Top Layer:||No|
|Frame Construction:||Standard Profile / Aluminum|
|Front Filter Threads:||Yes|