Hoya 39mm 81A Warming Color Correction Glass Filter

"81" series are color corrective filters that 'warm' bluish tones. They are avaible in several strengths (A, B, C & EF) with 'A' being the mildest warming effect.
•Available in all popular sizes. Reduces excess blue from flash indoors or in daylight flash-fill. Adds healthy look to skin tones shot in open shade or overcast.