The Tiffen 5 x 6" Decamired Red 1.5 Warming Glass Filter - 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. Will this work with Sony A58

A: yes , camera only , no battery grip

Q: 2. will a Sony A7RIII & Flashpoint (godox) R2 work together with this cable in TTL mode?

A: Yes, this cable will transmit the TTL signal from the camera to the flash as long as your flash unit has the Sony Multi Interface Shoe.

Q: 3. will this work with Rotolight Elinchrom EL-Skyport Transmitter Plus HS for Sony? So that I can use a cage

A: Yes, the Vello Off-Camera TTL Flash Cord for Sony Cameras with Multi Interface Shoe (1.5') shoudl work with a Sony Multi-shoe and the Elinchrom EL-Skyport Transmitter Pro for Sony.

Q: 4. I have a Nikeon sb600 Speedlight flash, and an as7iii, will this cord work?

A: We would not recommend using this as aligning the center pin may prove to be annoying and the Sony hot shoe has a row of contacts under that front edge that can easily get damaged.

Q: 5. WILL THIS WORK WITH THE CANON 6d?

A: After I got it I tried to work with it it was too clumsy and too hard to work with it didn't support the camera properly so I went back to the Nikon bracket

Q: 6. Does the Vello Universal Accessory Shoe Mount with1/4 come with this or would i need to purchase it seperatly?

A: Yes it comes complete

Q: 7. Would this work with a Canon 5DMII and battery grip and easily switch to vertical-portrait position without hitting the side of the handle?

A: There is 9in from the bottom bar to the top bar, so if your camera with batter is less than 9in is should work for you, I hope that helps

Q: 8. Is is rangefinder coupled?

A: Yes. The lens offers coupling and its manual focus design permits working with subjects as close range.

Q: 9. Is this flash cord compatible with the Flashpoint Zoom Li-on X R2 TTL On-Camera Round Flash Speedlight For Sony (Godox V1) ?

A: Yes Vello Off-Camera TTL Flash Cord for Sony Cameras with Multi Interface Shoe (6.5') is compatible with Flashpoint Zoom Li-on X R2 TTL On-Camera Round Flash Speedlight For Sony (Godox V1)

Q: 10. Will this work with a Nikon D300 and MB-D10 grip?

A: Yes it will work nicely with the D-300 and your grip but if you use the TTL sync cord it does get tight on rotating between vertical and horizontal. Work it slowly and you should be okay.