The Tiffen 6.6 x 6.6" Decamired Blue 3 Cooling 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 the battery be charged while inside the camera? Or only externally in a proprietary charger?

A: The battery is external charge only, on the charger that comes with the camera.

Q: 2. does it have manul mode? aperture shutter speed priority

A: No, it only has program mode.

Q: 3. Does the wifi on the camera allow me to download pictures to my laptop without additional software?

A: No, you will need to use the software available for download. It's essentially a device driver. Once you install that, you can use it.

Q: 4. does the free accessory kit come with a battery?

A: The camera comes with 1 battery , The accessory kit includes a pouch and card

Q: 5. is the camera the only platform for charging the batteries? any separate chargers on the market?

A: Mine came with a separate charger. You take out the camera battery, snap it into the charger, and plug in the wall outlet

Q: 6. Are there any problems taking pictures outside? I've read a couple reviews saying you can't and that is hard to believe.

A: Absolutely no problems shooting outside.

Q: 7. how many pictures can I take on one battery charge?

A: Lots my wife uses so I don't really know. Buy a spare battery and your good for all day

Q: 8. Can I connect this camera to the Canon SELPHY CP1300 printer via a usb connection?

A: Yes, the Elph 190 is compatible with the CP1300 for printing via USB cable.

Q: 9. Can I charge my NB11 battery with a CB-2LV G charger?

A: No , Canon CB-2LF charger will charge NB-11

Q: 10. What genre options does the Clip Jam have for you to choose?

A: Hello, My name is Allen from SanDisk support. I appreciate your query. Sansa Clip Jam doesn't have the Genre option in the menu. It will however list them in terms of Artist, Albums, playlists etc. Please find more information from the User Manual:a href= http://downloads.sandisk.com/downloads/um/clipjam-um.pdf target= _blank http://downloads.sandisk.com/downloads/um/clipjam-um.pdf/aYou can however choose the sound beats in favor of any Genre like Jazz, Pop, Rock, Dance etc in the equalizer settings For any further query, please contact SanDisk support at 1-866-SANDISK or submit a support request at a href= http://www.sandisk.com/support. target= _blank www.sandisk.com/support./a Thank you,SanDisk Support.