Tiffen Decamired Glass Filters - For those who want a sure-fire way of getting accurate color temperature readings, the decamired system is the way to go. Using this formula, you can transpose temperatures from one point to another easily and quickly. This system is also useful when you wish to bring a certain amount of creativity to color photography.

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.

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.

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.

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

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

Related Questions and Answers

Q: 1. Hello; I have older Elinchrom Style 400BX. Just to make sure; I will be needing the Angler Speed Ring for Elinchrom and Impact EX (B&H#AN7464ELI MFR#7464-ELI) If I then want to use speedlight(s) can I just buy the Godox S-Type Speedlite Bracket for Elinchrom - (Godox S-Type Speedlite Bracket for Elinchrom B&H #GOSEC MFR #S-EC) or maybe the Impact SR-SHOE-D Speed Ring (B&H#IMSRSHOED MFR#SR-SHOE-D)?

A: To use this Impact Luxbanx softbox, the Angler Speed Ring for Elinchrom and Impact EX, B&H# AN7464ELI would be needed to fit your 400BX monolight. To use the same speed ring and softbox with a speedlight, then you definitely need the Godox S-Type Speedlite Bracket for Elinchrom - (Godox S-Type Speedlite Bracket for Elinchrom, B&H # GOSEC.

Q: 2. What are the dimensions of the carrying case? Trying to figure out if it can fit in my case. Thanks.

A: 34 x 9 x 4

Q: 3. Bit confused, is this is an APS-C lens? If so, what is the equivalent on a full frame camera? (Lumix S5) Thanks !

A: The Panasonic Leica DG Vario-Elmarit 12-35mm f/2.8 ASPH. POWER O.I.S. Lens is a Micro Four Thirds mount lens, which is designed for a smaller sensor than APS-C. The full frame equivalent for Micro Four Thirds is 2x; so the 12-35mm lens will be a 24-70mm full frame equivalent. If you do have an APS-C camera, this lens would not be a viable option.

Q: 4. will this work with a Vanguard VEO 235AB tripod?

A: This counterweight hook assembly is only compatible with the Oben AT-3400, CC-2300, CT-3400, CT-3500, and AC-2300.

Q: 5. Could this fit a completely broken down FX6, including top handle and grip?

A: Yes, a completely stripped down Sony FX6 Full-Frame Cinema Camera, will fit into the Shimoda Designs Medium Mirrorless Core Unit Version 2.

Q: 6. Hi, I put it together and have no idea why is this Softbox sold without the ring. I bought impact luxbanks speed ring and it holds the rods. But I cant attach speedlight. I need to use with Canon speedlight 600exrt. If I use pro Godox Stype ring then how I am supposed to keep rods together? Please help?

A: Softboxes are often sold with out ring because a variety of lights could be used with them. In order to use this with a speedlight you would need a Bowens ring https://bhpho.to/2NubdL8 and a speedlight adapter https://bhpho.to/34jdQ6K.

Q: 7. Which speed ring do I need to buy to use a Nikon speedlite on this softbox?

A: A speed ring that can be used with this strip softbox is the Chimera Speed Ring for Canon and Nikon, B&H # CHSRC540EZ. That would be for larger Nikon speedlights such as the SB-800, SB900/910. For smaller Nikon speedlights such as the SB-600 or SB-700, you can use the Chimera Speed Ring for Canon 420, 430 and Nikon SB600 Shoe-Mount Flashes ,B&H # CHSRCEZ. Please see the images below for reference.

Q: 8. If I have octa rings for my Bowens-mount and Profoto strobes, will these fit? Or, do they have a proprietary fit with only Impact rings?

A: they are not proprietary. They will fit other manufacturers speed rings.

Q: 9. Will the Medium DSLR Core Unit Version 2 hold a Nikon 70-200mm unattached lens and a Nikon Z9 with a 24-70 lens attached?

A: Yes, the Shimoda Designs Medium DSLR Core Unit Version 2 (Parisian Nights) will hold a Nikon 70-200mm lens and the Nikon Z9 Mirrorless Camera with a 24-70mm lens attached.

Q: 10. Is this directly compatible with the Octacool-9 without any adapters ?

A: Unfortunately, no, the Impact Luxbanx Duo Medium Strip Softbox (16 x 55 ) would not be compatible for use with the Impact Octacool-9 Fluorescent Light. The included OctaCool 29.5 (75 cm) softbox is the only softbox that is designed for usage with the Impact Octacool-9 Fluorescent Light.