Tiffen 2x2" Decamired Blue Set of Cooling Glass Filters

BH #TIDMBLS22 • MFR #22DMSB
Tiffen
Tiffen 2x2" Decamired Blue Set of Cooling Glass Filters
Special Order
Expected availability: 2-4 weeks
$328.95

Important Notice

  • This item is noncancelable and nonreturnable.

Tiffen 2x2" Decamired Blue Set of Cooling Glass Filters

Jeannette G., B&H Photo Expert

True Know-How

Ask Our Experts

800.606.6969

Tiffen Decamired Overview

The Tiffen 2x2" Decamired Blue Set of Glass Filter - Takes the guesswork out of determining color temperature. Acts as a conversion filter for color temperature adjustments from any point to any other point in the color temperature scale. Can be used to create "proper" coloration in unusual situations and to make creative alterations.

Applications include keeping color temperature constant during the course of the day and producing the effect of different times of day. Available in two series, reddish filters that warm the light and bluish filters that cool the light. Each series contains 4 densities: 1.5, 3, 6, and 12. Filters in the same series can be combined.

The decamired system has an advantage over the Kelvin system in that the Kelvin scale is not linear
Decamired readings provide more accurate/controllable readings than Kelvin
The difference between the Mired value of the film and the Mired value of the light is the Mired value of the correction filter that correctly tailors the light to the film

A simple formula

  • Mired value = 1000000 : Kelvin value
  • Kelvin value = 1000000 : Mired value
  • For 5600K daylight color film, the Mired value is 1000000 divided by 5600 = 78.6
  • For 3000K artificial light, the Mired value is 1000000 divided by 3000 = 333.3
  • 78.6 Mired - 333.3 Mired = -54.7 Mired, or -5 Decamired
  • A positive value indicates a reddish KR filter, a negative value indicates a bluish KB filter
    Thus, the filter required to adapt the 3000K halogen light (the slightly low value results from the mains voltage being lower than its nominal voltage) to a 5600K daylight color film is a blue Conversion Filter

    Tiffen Decamired Specs

    TypeDecamired Cooling filter
    Size2x2" (50 x 50 x 4 mm)
    Grade-1.5, -3, -6, and -12
    Filter FactorVaries depending on what temperature it is being converted to
    Multi-CoatedNo
    RotatingNo
    EffectLight balancing
    ApplicationArchitecture, interiors or anywhere where precise color balance is required
    Color TemperatureKelvin values can be converted into Mired values, which can then be added or subtracted from the Mired values of the filters
    ConstructionColorCore Glass
    Front Filter Thread Size Not applicable
    Front Lens Cap SizeNot applicable
    See any errors on this page? Let us know

    YOUR RECENTLY VIEWED ITEMS

    Browsing History

    Close

    Close

    Close