Hoya 80B Color Conversion Filter Daylight Film mc uv 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

This helps match the scene to your film's white balance

Used in place of multiple graded Neutral Density filters

Both can be used together to produce an effect similar to dense fog

Filter Factor: 2 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

Hoya 80B Color Conversion Filter Daylight Film mc uv The 81B color correction filterDescription The 80B color conversion filter transforms the color of the ambient light entering the lens by adding blue to the overall exposure. This helps match the scene to your film's white balance. The Hoya 80B filter is helpful when: You are using daylight balanced film (5500K) and the light source is 3400K. This commonly occurs indoors when your main light source is incandescent light bulbs. You are shooting with daylight balanced film at night.