|
The BT.709/601 curve has a flat spot in the gamma curve near black which causes it to rise much faster than pure power. If your display benefits from it it is correct, however it was not designed for displays but as a way to deal with too much noise near black with early digital cameras. It is not technically correct for your projector but if you get some shadow crush it can improve the picture a lot. A custom calibration for you projector would be better, but that does require extra hardware.
This is separate from the gamut, which you should always set to whatever primaries your display uses. Your projector uses BT 709 primaries, selecting DCI-P3 or BT.2020 in madVR will give you an incorrect (and washed out) image.
|