The Hoya 82A is a light balancing filter used to increase the color temperature slightly for a cooler (bluer) tone.

The 82A filter is also used to prevent the reddish tones in early morning or late evening light for natural skin tones.

Hoya Multi-Coated Technology (HMC)
To provide photographers with a higher quality professionals require, Hoya created the Multi-coated line of filters. These filters have a 3 layer coating system that further reduces light reflections off the surfaces of the glass, the average is only 1-2%. This means that 98-99% of the light striking the filter is going through it, and depending on the type of filter, into the camera lens and onto the film. These layers of anti-reflective coating are bonded to the surface of the glass in a furnace at a temperature of up to 800 degrees F.