The Tiffen 4 x 4" Decamired Red 12 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. Can this monitor be used in addition to a HDMI EVF viewfinder?

A: Yes, because this monitor has an HDMI input and an HDMI output. So, you can go into the monitor directly from the camera, then loop out to your EVF. I have done this with no problem on my shoulder rig. That way if I want to come off the shoulder and go hand-held with the rig, I can use the Lilliput for monitoring. Another cool feature is that you can loop through the Lilliput to your EVF and the EVF will get signal even if the monitor is powered off as long as the monitor is connected to an active power source. I've turned the monitor off to conserve battery and still had signal into the EVF. One thing to be careful of though when running multiple HDMI cables to different sources is the HDMI ground issue. If you power both HDMI peripherals from the same battery source, you can possibly damage the HDMI output of your camera. To avoid damaging the HDMI output, you need to have all of the peripherals plugged in and turned on before you turn on the power to the camera. Hope this helps.

Q: 2. Does this have anamorphic de-squeeze?

A: This monitor offers the ability to change the Aspect Ratio, with 2.35:1 being a ratio you can select.

Q: 3. I have a Nikon D850 and D810 and need a monitor so I can easly see critical focus because my eye sight is not the greatest. So far I do not shoot so this would be used onlu for still photography. Will this monitor have an exact screen fit for what in in my camera's view?

A: You can use this monitor for still photography. You will just need to be using the Live View mode on the camera for that.

Q: 4. Can you use this monitor for shooting still photos on a canon 6d mk2 ?

A: Yes. Joanna Chen Lilliput Electronics Inc 9095988118

Q: 5. Can i use it on BMPCC4K ?

A: Yes, the Panasonic Leica DG Vario-Elmarit 12-35mm f/2.8 ASPH. POWER O.I.S. Lens (Micro Four Thirds) is compatible with the Blackmagic Design Pocket Cinema Camera 4K.

Q: 6. 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: 7. Does this lens work on an Olympus camera?

A: The Panasonic Leica DG Vario-Elmarit 12-35mm f/2.8 ASPH. POWER O.I.S. Lens with Filter Kit (Micro Four Thirds) is cross-compatible with all Micro Four Thirds camera systems.

Q: 8. If using the A7S as a loop-through monitor with the camera sending 1080i60 to the HDMI input, will the A7S HDMI output maintain the 1080i60 signal?

A: Yes, because it is a loop-through the signal will remain the same when outputted.

Q: 9. Is this lens ver2 or ver3?

A: The Panasonic Leica DG Vario-Elmarit 12-35mm f/2.8 ASPH. POWER O.I.S. Lens with Filter Kit (Micro Four Thirds) is the redesigned replacement of the Lumix G X Vario 12-35mm f/2.8 II ASPH. POWER O.I.S.

Q: 10. does it have a zoom in option or just show what is through the lens ?

A: It does have options to set ratio and zoom within the monitor.