The Tiffen 138mm Blue 6 Cooling Filterfrom 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. Is there a power on/ off button?

A: No, the Enhance GX-C1 does not have a power button. Instead it has a dial which is used to control fan speed and light brightness.

Q: 2. To use this in the bright tangerine one tray, do I want the mounted or unmounted version?

A: You will need to use the mounter version of the Revar Cine Circular Polarizer Filter (138mm, Unmounted).

Q: 3. also does this come with the rota tray like in the picture?

A: Yes, this comes exactly as you see it. One 138mm geared circular polarizing filter in the tray you see.

Q: 4. Is the Tiffen multi rota tray able to hold a 138mm diopter?

A: Sorry, but since the filter is permanently mounted, you cannot substitute a 138mm diopter.

Q: 5. How long does the battery last?

A: The SmallRig Cooling System for Sony Cameras does not have a built-in battery and needs to be powered by connecting to an external power source for proper operation. It can work with USB-C power banks or SmallRig V-mount and USB-C batteries and run all day. You could also work with USB-C wall chargers and never worry about power. Belkin BoostCharge USB-C Power Bank (10,000mAh, 15W, Black) BH #BEBPB011BTBK SmallRig L-Series/NP-F970 USB-C Rechargeable Camera Battery (Black) BH #SM4469 SmallRig VB99 Mini V-Mount Battery (99Wh, Black) BH #SM3580

Q: 6. Can it be adapted to other cameras that have a 3" LCD screen? Thanks, Christian

A: This Fujifilm FAN-001 is strictly for the Fujifilm X-H2S.

Q: 7. can i switch the light off?

A: The Enhance GX-C1 Laptop Cooling Stand (Blue LED), B&H # ENGXC10100BK, does not allow you to turn off the lights completely unless you also turn down the fans all the way down. The control dial controls both the LED brightness and the fan speed.

Q: 8. Will this fir the Fuji GFX 100S ( older version)?

A: According to Fuji the FUJIFILM FAN-001 Cooling Fan BH #FUFAN001 • MFR #16757344 is compatible with: GFX100 II / X-H2S / X-H2 / X-S20.

Q: 9. Will this lens kit fit on my Nikon D7100? 67mm lens?

A: The Tiffen 138mm Close-up +1/2 Lens is designed to be used on lenses that have a 138mm filter thread size. If your lens has a 67mm filter thread size, the Tiffen 138mm Close-up +1/2 Lens will not fit onto your lens. The only option from Tiffen that would work on 67mm filters would be the Tiffen 67mm Close-up Lens Set, B&H # TICUS67.

Q: 10. How do I connect a subwoofer, 2 bookshelf speakers (Klipsch KD-51M) to my computer. Will this work or can you recommend another?

A: The Pyle Home PDA29BU.6 Compact Stereo Amplifier with Bluetooth (BH # PYPDA29BU6) has no subwoofer output. Consider the: Sony STR-DH590 5.2-Channel A/V Receiver (B&H # SOSTRDH590): https://bhpho.to/2IabE6Q