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Tiffen Warm Black Pro-Mist F/X 1/4 Glass Filter

Tiffen's Warm Black Pro-Mist 1/4 filter adds subtle halation and warmth while preserving shadow detail and sharpness.

$499.95*
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*Price sourced from Amazon.com. Last updated:Jul 13, 2026.Price and availability are subject to change.

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Overview

The Tiffen 4" x 5.65" Warm Black Pro-Mist F/X 1/4 is a professional-grade glass filter designed for use in matte box systems on cinema and broadcast cameras. It combines two effects in a single filter: a black pro-mist diffusion that softens highlights and creates gentle halation around bright sources, and a subtle warming tone that shifts the color temperature slightly toward amber. The result is a reduction in the clinical sharpness of modern digital sensors while adding a pleasing warmth — an effect that is difficult to replicate convincingly in post-production.

The "Black" designation is significant because it means the diffusion effect is achieved using black particles within the glass rather than clear ones. This preserves shadow detail and overall contrast while still softening highlights, avoiding the washed-out look that clear-based diffusion filters can introduce. At 1/4 density, the effect is restrained and versatile — strong enough to be visible on screen but subtle enough to use across a variety of scenes without drawing attention to itself. This makes it a popular choice for interview setups, narrative filmmaking, and any situation where flattering skin tones and controlled highlight bloom are desired. The ten-year warranty from Tiffen reflects the durability and quality of the optical glass construction.

Specifications

Filter Size
4" x 5.65"
Filter Type
Warm Black Pro-Mist F/X
Density
1/4
Material
Glass
Warranty
10 Years

Pros & Cons

👍 Pros

  • The 1/4 strength provides a subtle, natural-looking diffusion suitable for a wide range of shooting scenarios.
  • Black-based diffusion preserves shadow density and contrast better than clear-based alternatives.
  • Adds gentle warmth to skin tones and highlights without requiring color correction in post.
  • 4" x 5.65" rectangular format fits standard professional matte box systems.
  • Backed by Tiffen's ten-year warranty for long-term reliability.

👎 Cons

  • The 4" x 5.65" rectangular size does not fit standard threaded lens filter rings without a matte box.
  • At 1/4 strength, the effect may be too subtle for users seeking a more pronounced diffusion look.
  • Glass construction adds weight and fragility compared to resin-based filter alternatives.
  • Cannot be easily stacked with other thick glass filters in a single matte box tray without potential vignetting.
  • The warming tone is baked into the filter and cannot be adjusted independently from the diffusion effect.

Frequently Asked Questions

This is a 4" x 5.65" rectangular glass filter, designed for professional matte box systems commonly used in cinema and broadcast production.
The 1/4 density provides a subtle diffusion effect — enough to soften highlights and skin textures without creating an obviously filtered look. It is one of the lighter strengths in the Pro-Mist range.
The "Warm Black" variant adds a slight warming tone to the image while using black-based diffusion, which reduces contrast and creates halation around highlights without the milky lift in shadows that clear-based diffusion filters can produce.
It introduces a controlled softening of fine detail and highlight edges, but at 1/4 strength the effect is subtle. Overall image sharpness is largely preserved, with the primary visible effect being gentle highlight bloom.
Tiffen backs this filter with a ten-year warranty.

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