SKU: 42224364808

Tiffen 5.65 x 5.65" Decamired Red Color Conversion Glass Filters (Set of 4)

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Description

Tiffen 5.65 x 5.65" Decamired Red Color Conversion Glass Filters (Set of 4)Used for Temperature Control Available in Specific Increments Warming and Cooling Variety Tiffen Decamired Filters Decamired filters are designed to more easily handle unusual color temperature variations than the previously mentioned filters. Available in increments of both a red and a blue series, Decamired filters can be readily combined to create almost any required correction. In measuring the color temperature of the light source, and comparing

  • Used for Temperature Control
  • Available in Specific Increments
  • Warming and Cooling Variety

Tiffen Decamired Filters �
Decamired filters are designed to more easily handle unusual color temperature variations than the previously mentioned filters. Available in increments of both a red and a blue series, Decamired filters can be readily combined to create almost any required correction.

In measuring the color temperature of the light source, and comparing it to that for which the film was designed, we can predict the required filtration fairly well.

A filter that produces a color temperature change of 100K at 3400K will produce a change of 1000K at 10,000K. This is because the filter relates to a visual scale of color. It will always produce the same visible difference. A color change of 100K at the higher temperature would hardly be noticed.

Example
To allow simple calculation of such differences, we convert the color temperature into its reciprocal, that is, to divide it into "1." Then, since this is usually a number with six or more decimal places, we multiple it by 106, or one million, for convenience. This is then termed the "mired value," for micro reciprocal degrees. It identified the specific change introduced by the filter in a way that is unrelated to the actual temperature range involved.

To see this more clearly, let's look at the following changes in color temperature from both the degree and mired differences. Numbers are degrees Kelvin, those in parentheses are mireds:

  • 9100 (110) to 5900 (170) = difference of 3200 (60)
  • 4350 (230) to 3450 (290) = difference of 900 (60)
  • 4000 (250) to 3200 (310) = difference of 800 (60)

    From this, you can see that, although the degree differential varies as the range changes, the actual filtration difference for these examples, in mireds, is the same.

    Calculations
    To use this concept, subtract the mired value of the light source from that of the film. If the answer is positive, you need a reddish filter; if negative, use a bluish filter. Mired-coordinated filters are termed as decamireds. Mired value divided by ten yields decamireds.

    The 60 mired shifts, above, would be produced by an R6 filter, where the higher values were that of the lighting. Sets of such filters generally come in values of 1.5, 3, 6, and 12 decamireds in both B (bluish) and R (reddish) colors. These numbers are additive; that is, a pair of R3's produces an R6. An R6 plus a B6 cancel each other out to produce a neutral gray.

In the Box
Tiffen 5.65 x 5.65" Decamired Red Color Conversion Glass Filters (Set of 4)
  • 4 Glass Filters
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
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SKU: 42224364808

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Jim Luke
Natrona Heights, US
★★★★★ 5
Cheap and nice.
Color: Silver Black
It's heavy and easy to wind. Time is slightly fast, maybe a minute per day. Easy to resize. Great value.
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Reviewed in the United States on February 18, 2026
J
Verified Purchase
Jose L. Vazquez
Phoenix, US
★★★★★ 5
it looks fantastic. There is nothing humble about this watch
Color: A Gold
It is a steal for the money, it looks fantastic. There is nothing humble about this watch. It makes its presence known. I see people get sight of it, then look away and come back and take a second long look at it One thing I would change.. the hands are not easily seen because they blend too much with the back ground. I got used to that and does not bother me any. Louie Vazquez in San Antonio TX
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Reviewed in the United States on January 29, 2018
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Verified Purchase
Jlissa
Dallas, US
★★★★★ 5
Bueno
Color: C Black
Muy bonito, buena relación precio calidad
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Reviewed in the United States on March 24, 2026
M
Verified Purchase
MIKE
Lake Worth, US
★★★★★ 1
DOA - doesn't work.
Color: A Gold
Love the looks of this watch but I cannot get it to work. I think that it is mechanical, but I wind it and it only runs for one to 10 minutes and sometimes not at all. Am I doing something wrong?
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Reviewed in the United States on June 28, 2018
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Verified Purchase
Christopher O.
Natrona Heights, US
★★★★★ 4
nice watch but expect what you pay for.
Color: A Gold, Color: A Gold
Pretty solid watch decent size face i prefer large face watches even with my small wrist. Its pretty good at staying synchronized. The case is pretty solid but closer inspection makes it look cheap, i still love though and it does get a lot of looks. The band is my really only big complaint it feels chintsy and cheap, the clasp spring fellout once but very simple to re-insert and if you have small wrist like me its definite resize. Other than that for the price its a cool mechanical watch.
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Reviewed in the United States on December 16, 2015

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