Hoya 82A Cooling Filter for Color Temperature Control Available-sizes-mm:62mm - $32.90 The 81B color correction filter

The 81B color correction filter warms the ambient light entering the lens by 300° Kelvin by adding orange to the overall exposure

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

1 Glass Type: Hoya Optical Number of Multi-Coatings: 6 total / 3 each side Hardened Top Layer: No Anti-Static: No Frame Construction: Standard Profile / Aluminum Front Filter Threads: Yes

The Green Field Intensifier filter is useful when:

Hoya 82A Cooling Filter for Color Temperature Control Available-sizes-mm:62mm - $32.90 The 81B color correction filterDescription The 82A color correction filter cools the ambient light entering the lens by 200 kelvin by adding blue to the overall exposure. This filter helps ultra fine tune the color or look of your scene to match your film's white balance. The Hoya 82A filter is helpful when: You are using tungsten balanced film and the light source is warmer than the traditional 3200 K and you need a specific amount of color correction to match your film type.