Hi guys, me still quite lost wit PJ stuffs...

 

Do we need to invert the pj? If its a must how do I invert it if i'm putting it on the shelf?

 

Rgds.

I think it depends on whether  the vertical lens shift of the PJ allows you to adjust up as well as down.

 

If it can only adjust up, and your shelf  height means that the PJ's lens is higher than the center of the projection area, you might have to place the PJ upside down otherwise

your image will be too high

If there's no option to invert the image, I guess you have to bolt the pj upside down underneath the shelf, just like the way to mount with ceiling bracket.