from piecing together newshooter’s tests and my own:
DIFFERENT LIGHTS, output 1m
skypanel s60: 1090 fc
gemini 2x1 :927fc
softpanel 1:2: 347fc
astra 6x - 588 fc
apurture 300d no modifier: 829 fc
aputure 300d with modifier: 996 fc
joker 800 with fresnel lens: 4300 fc
joker 800 with wide angle lens: 20,000 fc
CRI rendering 5600k:
softpanels: CRI (R1-R8) of 96.2 and an extended CRI (R1-R15) of 94.54.
gemini: average CRI (R1-R8) of 95.2 and an extended CRI (R1-R15) of 93.24.
ARRI SC60-C SkyPanel 5600K Extended CRI (R1-R15)- 92.92
astra 6x - average 92.4, extended, 89.3
aputure 300d: average CRI (R1-R8) of 94.4 and an extended CRI (R1-R15) of 92.49
Conclusion: best CRI for most light when needed: Aputure 300d
best cri and half the light needed: softpanels 1x2
and also CRI is not the end all judge of how accurate a light is for skintone - you gotta use it yourself and see how it renders skintones for you. This is more than science, it’s an artform as well.