The Tiffen 6 x 6" Decamired Blue 6 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. Does this device work with 64 Gb micro SD card? thank you

A: 64G?! Seriously? How big is your music collection?!! In any case... no, this player accepts up to 32G external card.

Q: 2. Does it play audiobooks, and, if so, can you pick up from where you left off?

A: Yes and yes, although I've only listened to audio books in mp3 format on my clipjam.

Q: 3. Will this work with the Blackmagic Pocket 4K?

A: Yes it is compatible with the Blackmagic Design Pocket Cinema Camera 4K.

Q: 4. Can over exposure be controlled when shooting in dappled sunlight/shadow?

A: Unfortunately you can not control the exposure when in dappled sunlight/shadow.

Q: 5. what color pink is this player? (i.e. bright, bubble gum, pale, dull, etc.) Thanks in advance!

A: This player would be a very bright pink in color.

Q: 6. I wanted to add to my review of the CANON 190 IS- I don't know if it is me or the camera, but the 190 IS has trouble focusing very often. It allows photos to be taken blurred. This is with the flash activated. Moreover, the manual does not detail many of the most salient features like how to turn the flash on and off; how to turn off some of the auto features like auto rotate. The list goes on and on. How did I find out how to use this camera more fully? I had to resort to GOOGLE. The rest I leave to your discovery.

A: You can turn off the auto flash very easily by clicking the flash icon on the right in the circle of function settings. With adequate light and charged batteries you should get tight focus on objects in the center of the frame.

Q: 7. I'm looking to replace a SD1100-IS and a A1000-IS, both are PowerShots with viewfinders and are great little P&S cameras. These latest ELPHs appear to *not* have viewfinders, is that correct? I also have a SX110-IS with no viewfinder, it is *horrible* to use in bright sunlight, display is totally washed out so I am "gun-shy" about cameras lacking viewfinders. Looking for suggestions or comments from anyone. Thank you.

A: The models of Canon ELPH cameras that are made today do not come with optical viewfinders, that's true. However, this model of a Canon point and shoot offers an optical viewfinder and also a built-in photo printer: Canon IVY CLIQ2 Instant Camera / Printer with 50 Sheets of Paper Kit (Charcoal) (B&H# CACV223MC50P) https://bhpho.to/3ljJpXv

Q: 8. Can you extend this battery's runtime by plugging it in while in use?

A: Unfortunately, no, the SmallRig LP-E6NH USB-C Rechargeable Camera Battery cannot be plugged into the USB-C cable while the battery is in the camera due to the USB-C input location.

Q: 9. Is it possible to charge this battery with the dedicated Nikon charger (MH-32) too or just USB C?

A: Yes, you can charge the SmallRig NP-EL25 USB-C Rechargeable Camera Battery with the Nikon MH-32 Battery Charger (BH #NIMH32BC).

Q: 10. Can this be charged with the SmallRig LP-E6NH Camera Battery Charger?

A: Yes, if you don't want to plug the USB-C cable directly to the SmallRig LP-E6NH USB-C Rechargeable Camera Battery, you can use the SmallRig LP-E6NH Camera Battery Charger to charge the battery.