W4 Umber Warming Color Correction

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W4 Umber Warming Color Correction

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  • W4 Umber Warming Color Correction
  • W4 Umber Warming Color Correction
  • W4 Umber Warming Color Correction

W4 Umber Warming Color Correction

  • Designed for Film Photographers
  • Warms Color Temperature by 500°K (+40 Mired Shift)
  • Excellent choice for heavy shade or overcast days to add warmth
  • 6 layers of HMC multi-coating
  • Equivalent to 81D Filter
$54.90
$54.90
  • W4 color correction filter warms the ambient light entering the lens by 500° kelvin (+40 mired shift) by adding light amber color to the overall exposure. This filter helps fine-tune the color or look of your scene to match your film's white balance or creative vision.

    The Hoya W4 filter is helpful when:

    • You are using daylight-balanced film and the light source is colder than the desired look and you need a specific amount of color correction to match your film's color balance (5500°K). Great on strong overcast days or when you subject is in the heavy shade.

    • When shooting portraits and you want to give the skin tone a sun-kissed warm look.

    • You are shooting at sunrise or sunset with daylight-balanced film (5500° K) and you want to a really warm looking scene.

    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

    200°K (+20 Mired Shift)

    81A

    W4

    500° K (+40 Mired Shift)

    81D

    W10

    1950° (+100 Mired Shift)

    @85
    W122200° (+120 Mired Shift)@85B


  • Exposure loss:2/3 Stop
    Mired Shift +40
    Equivalent Filter 81D
    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