NOT KNOWN FACTS ABOUT WHY IS MY PROJECTOR SCREEN GETTING DIMMER

What does this mean? Customers should improve the projector's placement if possible to reduce the quantity of zoom necessary and keep brightness. So mount as shut as possible?6, and colour factors regular to your dE of 0.8. I went by way of a entire calibration, which mildly improved All those now stellar quantities, but absolutely nothing that wou