I don’t have a horse in this race, but what ever is done to adjust measurement should be similar or consistent with TA’s tube and/or with replicable readings among each of the 30 tubes out there. I am not suggesting one not have fun playing with their own tube, but it seems an important part of having 30+ tubes out there would be that they have similar measurements and a kind of “standard” between them.
It would be nice if everyone had like a “calibration” light or set of lights that would be used as a standard starting point and assuming every similar light was putting out similar lumens (maybe thats impossible…). Maybe there is like one “right on the nose” light everyone might have (BLF Q8?). Everyone blast your “calibration” light in there, calibrate it to an agreed upon or “defined” lumen output, and see if that lets others measure other lights with any consistency.
Could like everyone use some kind of AC lamp with a set rated lumen output, some LED light bulb or something as a cheap and easy to get standard? Everyone buy the same exact LED bulb and go from there?
I suspect my idea is maybe too simple for the sophisticated optics behind tubes and lumens.
I suspect TA will have a better and simpler way to address the calibrations if necessary.
I just like to learn stuff…