ok can anyone validate my math here?
I'm pretty sure im going with the panasonic pt-ae4000 projector and going to use the zoom and vertical shift with the lens memory function for 2.35:1 material...which means ill need a 2.35:1 screen with some masking. If i understand how this works correctly, the projector will still be projecting the black bars at top and bottom, but they are just "zoomed" out of the screen area.
So what im tryin to figure out is how much masking/frame material ill need top and bottom to prevent the black bars from reflecting off the wall. I've got kind of a tricky screen placement so just covering the whole wall in velvet wont work
Now...if im looking at a 120" 2.35:1 screen measured diagonaly im looking at a viewing area of 110.4"W X 47"H.
So the native 16:9 img at 47"H will be 83.6" wide....so a 2.35:1 image unzoomed would be 35.57" tall? leaving 11.43 total inches of black bar or 5.72 top and bottom...
so when the image is zoomed to fill the screen its 24.3% larger, making the black bars 7.1" each? Im just trying to plan ahead for screen build and masking etc... Let me know if im way off base with how to figure the size of the black bars top and bottom.
A thought just occured, how well will flat black paint hide those projected bars?