The Series 9 Decamired Blue 12 Cooling Filter from Tiffen is for those who want a sure-fire way of getting accurate color temperature readings. 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.

Decamired filters are used to maintain consistent color temperature during the day's shooting. Decamired filters are available in two series - reddish filters that warm the light and bluish filters that cool the light with each series available in four densities: 1.5, 3, 6, and 12. When filters from the same series are used, they can be combined.

Decamired filters can be readily combined to create almost any required color correction. In measuring the color temperature of the light source, and comparing it to that for which the film was designed, required filtration can be easily calculated.

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 Accurate Temperature Control    Filters Can Be Combined to Control Color    Made in Specific Increments    Available in Warming and Cooling Variety    ColorCore Glass    Made in the USA    10-Year Warranty

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 balances the light to the film

Related Questions and Answers

Q: 1. Will the IBIS stuttering/jitter flaw with diagonal panning during video recording be solved via firmware update or is it a hardware issue?

A: Firmware update 1.1 released 11/16/16 on Panasonic site. It can be downloaded and applied via formatted SD card.

Q: 2. What is the resource of a mechanical shutter Panasonic Lumix DMC-G85 / G80?

A: The use of the mechanical shutter would allow you the use of a flash which would not work in silent shooting. And in terms of shooting action or fast moving subjects, mechanical shutters give less distorted and seemingly off images. One example would be seen in the 3rd image on the page below: https://fujifilm-x.com/en-us/stories/advanced-month-3-motion-9-electronic-shutter/

Q: 3. Can Exposure Compensation (+/-) be adjusted while video recording in Priority Modes or iA mode?

A: Yes, it is possible to use exposure compensation while recording a video in priority modes or in iA mode.

Q: 4. Does this output 4K via teh hdmi?

A: I have never had a reason to use it, but there are youtube videos showing the G85 live streaming 4K video via HDMI.

Q: 5. Is there any opportunity to change camera to pal system ? Or to recond in 50 fps ?

A: I'm sorry but the G85 shoots in NTSC only.

Q: 6. What is the size of the tripod mounting receptacle?

A: It is a standard size as fitted to all cameras. 1/4 inch

Q: 7. Will canon FD lenses fit on the g85?

A: You can adapt FD lenses with the FotodioX Mount Adapter for Canon FD/FL-Mount Lens to Micro Four Thirds Camera, BH # FOFDMFT. https://bhpho.to/3710AH6

Q: 8. how good is wifi connection on G85, picture sharing with iPhone specifically? I'm seeing bad ratings on appstore of Panasonic Image App

A: Its just a matter of linking the camera with the smart device and than its good

Q: 9. Is this camera durable?

A: It is very durable. I've used it in rain, cold, heat - you name it. The weather sealing on the camera is excellent.

Q: 10. Will the H8 include M/S decoding with a MSH-6 capsule, and will it be available in all three modes?

A: It will not include the M/S module in the box. Tthe MSH-6 module is fully compatible with it.