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HOYA 46mm HMC W12 Umber Warming Color Correction (Equivalent to 85B Filter)

HOYA 46mm HMC W12 Umber Warming Color Correction (Equivalent to 85B Filter)

  • $ 5490
  • Equivalent to 85B Filter
  • 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
  • Converts Color Temperature by 1200°K (+120 Mired Shift)
  • 6 layers of HMC multi-coating
  • Front Filter Threads


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 5500K 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



  • Designed for Film Photographers

  • Converts Color Temperature by 2200K (+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


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:


FILTER  Cooling Amount    Equivalent


W2                       200K (+20 Mired   Shift)             81A


W4                       500 K (+40 Mired Shift)              81D


W10                    1950 (+100 Mired Shift)             @85


W12                    2200 (+120 Mired Shift)            @85B


Filter at a Glance


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