hi, I think it's going to vary from projector to projector depending on how they set it at the factory. This 750 had a very noticeable red shift even when not using the LED dimming. I could bring down the blue / green gains in the menu but it cost too much light output when it's already limited to begin with and also still had the shift with the dimming. I think it's a software bug and when corrected at the hardware level and the gains zero'd out it's now well behaved during the dimming.
maybe the same for the Sim2's and some just had a better factory setting? I don't see color shifts on this M50 during the dimming, it's almost perfect D65 out of the box with very small adjustments to the gains. Or perhaps they changed the software when they built the M150.
Do you have any specific scenes where you see it on the M150? I'd like to take a closer look.
On my m150 i dont have any color push at all , its spot on d65 , the color shift only happens with DB on, so i guess its a different situation and even accessing the sensor isnt going to fix it.
If u have black panther, the scene in the museum where they steal the artifacts in the beginning , it has subtle color shifts. A lot of people though wont notice it, but i m picky with this stuff and I see it right away.
Whats interesting is if i raise the contrast setting to the point of clipping, it disappears....
So its probably a software thing, and that is how its implemented, its very subtle though and its only like 2x improvement, so i live without it since the picture is stunning without it, it doesn't do fade to black either so its completely different than the mico50.
It only happens with bright content, m not sure why db is active anyway on bright scenes, maybe they are low adl scenes.