degarb
Flashlight Enthusiast
No not really. Cameras can do just fine with <100 CRI, even with fairly poor CRI, though somewhat flat spectrum helps. Biggest issues are monitor calibration, trade-offs in the RGB pattern demosaicing, differences between capture filters and display spectrums, etc. Trying to catch the subtlety of color with only three broadband sensors results in trade-offs, though in theory if the capture and display have the same spectral characteristics, you can get very close. You are adding in narrow band reflectance issues of the objects you are viewing/etc.
As opposed to high-cri, dual white point LEDs systems are being used which creates more data points.
Most people are happier with colors that are more saturated than reality and would pick those almost always anyway when it comes to photography.
Dual white. You mean like my crude trick of wearing a cool on head and warm of wrist, for color skip/streak hunting while painting? Or visa versa.
Can you think of any useful situation where the Yuji on battery would be worth the premium?
My concern too is reduced luminance per watt will be a regression in color perception, not an improvement. Unless, runtime does not matter and the Yuji could be pumped furiously with current.
Sorry to say, just got a new Nichia 219b 4000 Kelvin flashlight in the mail yesterday. Compared to my xpl hi, the only situation it was better was upclose on red and red heavy wood (even compared to the warm xpl hi) . At any distance greater than 10 foot, it was crushed by the 4300 Kelvin xpl hi for color, as it was just plain dimmer. All my research keeps saying, color is cri, gai, and luminance, combined. Both the Nichia and xpl hi 4300 Kelvin light, shift the powder blues toward teal, when they are pure blue. And I got to hand it, the 6500 xpl hi is way better than most xml from the 2014 Era and before, still selling inside cheap lights.
All tests were done at 2.1 amps, New Panasonic 3400s. I will test current with alternate mm later. Hoping my early impressions are correct, and not way off what is achievable with the hi cri emitter. If the Nichia could be pumped double current from my tests, it might keep up with the other two, and surpass in color rendering for the eye.
Really, the high cri Nichia has brought me no closer to the perfect task light. Still need that cool for good blue. And I am not sure about the swap choice of lumens for better red.
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