W12 Umber Warming Color Conversion
W12 Umber Warming Color Conversion

W12 Umber Warming Color Conversion

Regular price$54.90
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  • Designed for Film Photographers
  • Converts Color Temperature by 2200°K (+120 Mired Shift)
  • Use with Tungsten Balance Film in Daylight conditions
  • Excellent for CineStill 800T
  • 6 layers of HMC multi-coating
  • Equivalent to @85B Filter

W12 color conversion filter warms the ambient light entering the lens by 2200° kelvin (+120 mired shift) by adding dark amber color to the overall exposure. This filter is excellent when using tungsten balanced film like Cinestill 800T and want to create a natural look when shoot outside during the daytime.

The Hoya W12 filter is helpful when:

  • You are using tungsten-balanced film and want to capture natural colors during the daytime instead of the heavy blue cast the film will create. 

  • You are shooting tungsten-balanced film indoors with 5500°K light sources like flashed or studio strobes

W12 is stronger than W10 so it will produce a more neutral look when used with standard tungsten balanced films

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 C Series Filters:


Cooling Amount



200°K (+20 Mired Shift)



500° K (+40 Mired Shift)



1950° (+100 Mired Shift)

W12 2200° (+120 Mired Shift) @85B
Exposure loss: 1 1/3 Stop
Mired Shift +120
Equivalent Filter 85B
Glass Type: Hoya Optical
Number of Multi-Coatings: 6 total / 3 each side
Hardened Top Layer: No
Anti-Static: No
Frame Construction: Low Profile / Aluminum
Front Filter Threads: Yes