Tiffen Decamired Filters 
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.

Example
To allow simple calculation of such differences, we convert the color temperature into its reciprocal, that is, to divide it into "1." Then, since this is usually a number with six or more decimal places, we multiple it by 106, or one million, for convenience. This is then termed the "mired value," for micro reciprocal degrees. It identified the specific change introduced by the filter in a way that is unrelated to the actual temperature range involved.

To see this more clearly, let's look at the following changes in color temperature from both the degree and mired differences. Numbers are degrees Kelvin, those in parentheses are mireds:

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

Related Questions and Answers

Q: 1. Why is the Aputure 300X limited in range of 2700k - 6500k? Is it Possible to make this light operate at higher K color tempuratures? For example, The Aputure Nova P300C has a CCT range from 2000K - 10,000K... why can't the LS300X do this.... or could a firmware update expand the colour tamp range?

A: Different LED have different limits based on the chemistry of the LED. It can not be changed via a firmware its a hardware limitation.

Q: 2. What pelican case does the soft grey case fit into? I want to be able to check these and have seen them fit perfectly into a pelican case.

A: The dedicated SKB hard waterproof case from Aperture used to hold their light kits has been discontinued and is no longer available for purchase. If you are looking for an alternative hard, waterproof case that would fit the gray Aputure LS300DII & 300X Carry Case included with the purchase of the Aputure Light Storm LS300X LED Light Kit with V-Mount Battery Plate, I would recommend the Pelican 1660 Case with Foam (Black), B&H # PE1660FB, or the SKB iSeries 2918-14B-C Wheeled Waterproof Case (Black, Cubed Foam), B&H # SK3I291814BC, for your usage needs.

Q: 3. Is the yellow filter the same as a CTO full, 3/4, 1/2 or 1/4?

A: No, it is not. The above are not color correction gels; they are effect gels and are not designed to correct color temperature.

Q: 4. Does this kit include the light stand? The photos show one, but the description doesn't say it does. One of the reviews references a stand too.

A: Yes it includes a Light Stand

Q: 5. Can this light be powered by gold mount batteries?

A: This light is a V mount but you can adapt it with a Dracast V-Mount to Gold Mount Battery Adapter BH #DRBADPSA • MFR #BADP-SA or similar.

Q: 6. Can this Charge my V-Mount Batteries? when the light not being used?

A: No. The ballast system offers no passive power to charge battery while not in use.

Q: 7. Will the app control of this led video light work with ipad?

A: Yes. System can be driven via ios or android app.

Q: 8. What's the difference btw this light and the Aputure C300 Mark II light?

A: The Aputure Light Storm LS300X is bi-color. Color Temperature: 2700-6500K. The Aputure Light Storm C300d Mark II is only 5500K color temperature. And they have different Lux. The C300d II is 3500 Lux at 9.84' And the LS300X is, 105° at 3200K, 5100 Lux at 3.28' 105° at 4300K, 7500 Lux at 3.28' 105° at 5500K, 6300 Lux at 3.28'

Q: 9. This softbox https://www.bhphotovideo.com/c/product/1633069-REG/godox_qr_p90_quick_release_parabolic_softbox.html Suitable for this lighting?

A: Yes this Bowens mount octa will fit the GVM light with a Bowens mount.

Q: 10. The particular Watson V-mount battery that is the 'recommended accessories' is not rated at 190Wh (or higher) like the B and H staff person (Byron) said that Aputure recommends. It's mind boggling that B and H makes this so confusing. Watson does make a 192 and a 198 Wh battery. Wouldn't these be the best fit to power these Aputure lights?

A: To clarify, the Watson Pro Cine High-Load V-Mount Battery, B&H # WAVM99HCSR currently offered an accessory is able to handle the high draw of 15 amps on this Aputure lamphead. However, it will not run the light at full power as long as a battery that is 190Wh or higher. If you prefer a longer run time at full power, the Watson Pro Buddy System High-Load V-Mount Battery BH #WAVM198BHLE would be a better option. https://bhpho.to/2ClkpwG