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Hi, Catherine and Noni, I do not have any good ref. standard. I heard someone in Europe was trying to find replacement reference materials, and was unable to get into the commercial market; I guess it is too small for mass production with commercial profit. Alternative might be relying on relative ...

Hi, Ms. Zachri, What is the light source of your MFT? I assume it is LEDs for Instytut Fotonowy MFT. If so, I suggest avoiding using Bluewool reference, since it is designed for Xe light source (not sure D65 or D50), which include some UV components. But the LED light source does not apply. In addition, ...

Hi, Cindy, It is a myth. To determine a replacement schedule, we need to know the specified shelf-life of a product under a defined storage condition. I reached out to several suppliers in the US, UK and DE about 2-3 years ago, and no one is willing to tell me. The reason is obvious: this is a low ...

Hi, JP, Interesting observations! Do you have enough data to plot a chart of delta-E00 vs. time over a period that is long enough to represent a typical use case of continued operation of MFT, for example, 1 hr. or 1 day? This will be very useful for folks to estimate the potential drifting of the ...

Hi, All, I am providing some comparison data between the measured color temperatures vs. the original targets. There are some gaps between them, depending on the designed CCT of an LED: the higher the intended CCT, the larger the gap vs. the actually measured CCT. The root-cause of this is uncertain, ...