Join Date: Feb 2001
Location: Kansas City, KS
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Coming in late to the discussion - sorry if this has been covered...
It seems that you all are referring to two different tyoes of "Light spill".
The first is the traditional use of the term - light leaking out from the PJ in areas other than the lens.
THe 1000 has a TINY bit of light from various spots - I'm looking at it right now. However, its negligible. One way to check this it to put up an all black image, then place your hands on the projector on either side of the lens, or in various places, and move them about while watching the screen. If you can't see shadows or movement, the light leakage is minimal. Even if you CAN see very light shadows or other, it is rendered moot whn there is an image on the screen. Having seen projectors with noticeable light spill, I can say that with the hd1000 its a moot point - can't be seen.
The other "Light spill" mentioned above is extra "projection" to the screen other than usable pixels. The HD1000 has this as well. There was an in depth discussion on this several months ago. Here are my findings -
I am convinced that the HD1000 actulaly uses the 768 pixel DMD or some other iteration, and simply doesn't send signal to them. Here's why -
While testing the HD1000 for the best image size in my room, I zoomed in the picture smaller than the black border on my screen, after a while of viewing, I noticed a small "bezel" around the projected image. It was very dark, but after comparing it to an area of definitely "non projected" screen, it was a tiny bit lighter, and well defined, meaning the projector was actually projecting it. I became concerned that somewhere in the sigmal path some processing was being done, and my pristine 1280x720 signal was for some reason being scaled slightly smaller. I tried every setting possible, even hooked up my computer to play with resolutions. THose pixels never displayed, nor nor went away.
This sparked a lively thread discussing what this could mean. However, though every HD1000 does this, no one had a good answer.
The slight overage of projection doesn't bother me - its buried in my screen border, and even if it wasn't its REALLY dark. The idea that I wasn't getting full resolution DID though, so here's what I did to check. Please don't ridcule me for my anal retentive personality...
Using post it notes, I discovered that I could zoom the projector to make each post it exactly 24 pixels across. I then projected a 720p image and froze it, then began posting notes all the was across the bottom of my screen and one side. I was EXTREMELY careful to lign them up exactly. After checking and double checking, the image was EXACTLY 1280 by 720 pixels in size. I checked several different ways - with a tape measure, yardstick, etc. Alwasy the same.
And yet, there was still this bezel of about an inch in width all the way around. This seemed to me to be irrefutable proof that the chip is actually something other than 1280x720.
However - it just deosn't matter. On EITHER types of "spill". It doesn't affect the projected image in the least.