Hoya A 81 C Filter
Hoya A 81 C Filter Box

81C Color Correction

Regular price $29.90 Sale price$20.90 Save $9.00
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  • Warms color temperature 400°K to balance cool lighting conditions 
  • Designed for film photographers
  • Helpful on overcast days and shady conditions
  • 6 layers of HMC multi-coating

The 81C color correction filter warms the ambient light entering the lens by 400° Kelvin by adding orange to the overall exposure. The filter helps fine-tune the color or look of your scene to match your film's white balance.

The Hoya 81C filter is helpful when:
  • You are using daylight-balanced film and the light source is cooler than the traditional 5500° K and you need a specific amount of color correction to match your film type.

  • You would like to add a slightly warmer look to your portraits.

  • You are shooting in overcast conditions and there is a blue color cast.

HOYA Multi-Coat (HMC) filters are recommended for enhancing the performance of today’s multicoated lenses. These popular filters minimize reflection, reduce flare and ghosting, and result in over 97% average light transmission.

Comparison of 81 Series Conversions:
FILTER Warming Amount (in degrees Kelvin)





81C 400°
Filter Factor: 1/2 stop
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