If you paid attention to what I wrote that was exactly the sort of thing that needs to be avoided…

From my understanding when the prints are scanned they are scanned with light already protruding through the image anyway so that actually means that the light factor is out of the way in a sense.

I would discard specs for bulb brightness and so on because this would be for the throw distance accounting for the loss in drop off from distance to screen so the bulb brightness is simply large cinema Bright bulb small cinema normal bulb. Brighter bulb higher temperature to be expected really.

Screen material is simply trying to improve the surface reflection and better screen material would perhaps be used in the bigger cinemas but in smaller cinemas it would be a shorter throw so you don’t really get much from this one.

Color of bulb is all that it really rests on so you already shined a light when scanning but if it was not the same as a projector bulb which used to be yellowish. So in as much as in an un-technical way of saying it the cancellation occurs between the print and the bulb color only. Anything outside of this is sort of not worth considering.