I have a Lee filtersample-book, with transmission spectra charts, so yes, I could try a few things.
But to be honest, what ultimately matters is if the tint experience is good. Every led that maukka tested for tint and CRI thusfar closely matched their specifications, so to check if a 90 CRI led really is 90 CRI is not needed.
I have studied the picture of the LED LGs website more closely. It actually seems to have bond wires, so it’s not a flipchip LED. De-doming might be a nice option here for some people.
I have done a sort of attempt to dedome a Samsung led in the past and that was a fail, at least it is a lot harder to do than Cree leds. LG leds seem to be technically related to Samsung leds.
Correct me if i’m wrong, but high CRI does not necessarily mean great values in the red part of the spectrum.
And from what i’ve read about Cree high CRI LEDs, they don’t have as much deeper red as Nichia high CRI LEDs.
Even when the tint is to the red side, real deep red is not necessarily there.
Maybe those XP-L2 you mention are just as good, i don’t know them.
Actually the newer Cree LEDs (XHP-50, XHP-70, XP-G3, XP-L2, XHP50.2, XHP70.2) with 90CRI are just as good as the R9050 Nichias in this regard. I have lights with both and measurements from others have shown this as well (Maukka for example, see here).
Of course the Nichias have better tints though.
The 219Bs are very inefficient and have a low maximum lumens output. The current 219Cs are not available with R9080, only R9050. Also they don't offer an XP-L2 sized LED. That is why this LG is so interesting.
There is also the question of what we actually need. A R9 value of >=50 is already very good. It makes all the diffference in the world compared to LEDs of the past.
I know sample size = 1, but I have a high CRI XP-G3 and find it very ugly. Yes the CRI is there, you can tell it if you look for it, but I’m so distracted by how green it is that I have to really try to see the nice color rendering.
It seems to vary. I have 4000K 90CRI XP-L2’s that are as green as you describe, while the 80CRI variant of the same led has a great tint. The 3000K 90CRI XM-L2 leds that KD sells again have a wonderful tint.
I have some 80 CRI 3000k XP-L2 which aren’t too bad, lots of pink in the tint. But the 80 CRI 3000k XP-G3 looks fairly green. I’m sure there are good new generation Cree chips out there, but it seems a bit of a lottery right now.
The only amazing Cree I’ve seen so far is the 4800K XM-L2 EasyWhite (quad die) in the ZL H600Fd Mk3. Even if it is CRI 84 R9 19. The frosted lens makes wonders.
This is going off-topic, but I recommend shaving or de-doming the first generation high-cri XHP-50 and XHP-70s. It noticeably reduces the yellow corona and spot. The tint becomes much more even.