The Tiffen 2 x 3" 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. Is it compatible with Windows 8.1 in Spanish?

A: I know it's compatible with Linux kernel 3.10 so it must use a generic software interface. The LG support page lists no drivers so I assume none are required. I haven't used it with any languages other than English but I doubt that would be an issue.

Q: 2. will this drive play discs as well?

A: Yes, it does

Q: 3. Does this drive support HDR discs?

A: This drive would support the following Blu-Ray Read Speed BD-R XL (TL, QL): 6x BD-R (LTH): 6x BD-ROM (SL): 12x BD-RE (SL): 8x BD-R (SL): 12x BD-RE (DL): 6x BD-R (DL): 8x BD-ROM (DL): 8x DVD Access Time 160 ms,DVD-ROM (SL): 16x DVD-RAM: 5x DVD-RW: 12x DVD-R (DL): 12x M-DISC: 12x DVD+R (DL): 12x DVD-R (SL): 16x DVD+RW (SL, DL): 12x DVD-ROM (DL): 12x DVD+R (SL): 16x CD Access Time 150 ms, CD-RW: 40x CD-R: 48x 80mm CD: 11.5x CD-ROM: 48x

Q: 4. will this drive compatible with Mac? I have a mid 2012 macpro tower and most of other drives are NOT compatible.

A: MacSales.com sells this as compatible for Mac Pro 2006-2012 and PC Desktops.

Q: 5. What does the Tamron 150 x 600 lens weigh? I love it, but seems heavy

A: The Tamron SP 150-600mm f/5-6.3 Di VC USD Lens for Canon, B&H # TA1506005C, weighs 4.30 lb (1.95 kg).

Q: 6. will this record video shot in 30fps or 24fps and will it record these differing rates back to back?

A: The LG WH16NS40 16x Internal Super Multi Blue Blu-ray Disc Rewriter (OEM Version) will playback in 30fps or 24fps. This will is all depend on the original source that the video is coming from.

Q: 7. Are there still issues with this lens or had Tamron corrected those problems? I remember when it came out people complained about focusing issues.

A: From what I hear there is actually a new version of this lens. Having that said, I have the old version. Although it has its limitations, for example low light conditions are challenging, but not impossible if you adjust your settings for it, and extreme far away objects get rather soft. I've done some surprisingly nice images of wildlife at as little as 1/250 of a second. Not too shabby.My nikon 400mmlens hunts a lot more than this one. Although it hunts a little when I'm trying to get warblers. I think the only thing I would want to change on it is the location of the manual focus ring. (I like to manual focus)It's a pretty good lens overall and I'm very happy with mine.

Q: 8. What types of cables does this require?

A: 1. SATA power cable from the power supply, which ends in a thin, black plug.2. SATA data cable. Plug one end into a free SATA port on your motherboard, and the other end into the port on the back of the drive.

Q: 9. Does this support 4K UHD Blu-Rays? Not play in 4K UHD, but play 4K UHD Blu-Rays in whatever format this plays in.

A: Sorry, no. The LG WH16NS40 16x Internal Super Multi Blue Blu-ray Disc Rewriter (OEM Version) will only work on regular Blu-ray's. Also, this is only sold in multiples of 10 pieces. Not single units.

Q: 10. What driver do I need for this?

A: Built-in Win7 drivers were sufficient.I believe I updated them from manufacture site after install.