At our church we have an older 4:3 projector we'd like to upgrade. Funding does not currently allow us to go with a 16:9 screen, but we don't want to be stuck with a 4:3-only projector if we're going to be going widescreen in the next 2-3 years.
So I thought we might get a 16:9 projector now, use it to project our existing 4:3 song slides (1024x768), then upgrade the screen in the future and do full 16:9 projecting.
However I'm unsure what the video quality will be.
Can 16:9 projectors project in 4:3 at the same quality that a native 4:3 projector would? (I know that computer monitors have their native resolutions, and anything else looks fuzzy. Not sure if the same is true of projectors)
If a 16:9 projector is filling a 4:3 screen with a 4:3 projected image, will the lamp show faint bars going off the sides of the screen? (i.e. does it project several black pillarboxes on the side?)