Originally Posted by TekHousE
Guys I just installed a PT AT5000 in my dedicated theater at home.
First impressions are good but I need some gurus to step up and help me with a few things.
1- My screen is 2 meters wide. 16:9 ratio. I had my Optoma HD73 setup with an addon Anamorphic lens so I had CIH. *this means I had wasted space on my screen obviously.
- How do I achieve 2.35:1 now? I mean, if I wanted to run it at that aspect ALL the time?
2- Focus! For the life of me I cannot get it to focus evenly. The bottom maybe 1/6th or so of the screen cannot focus as well as the rest.
- I am running with some tilt downwards on the horizontal. IN my setup I was able to get the lens of the Panny fairly centered. The Optoma was offset to the side as well so my ceiling mount worked well with the new Panny.
But I am trying for perfection and at least when using my Home theater PC the bottom task bar is obviously out of focus. It is all readable. But compared with the top which is crystal clear and sharp...
When I run 2.35:1 1080p source through my Bray player, the movies displays more centered, which gives me the picture above this last 1/6th of the screen and ending roughly 1/6th or more from the top. This is fine. It does not bother the display much at all.
Any help would be appreciated.
Have you called Tech support? I have been in contact with them about the same issue. I hope people having this issue call them so that it gets some recognition as a problem.
Here is what I've determined so far from my own experience.
I also have a focus issue. The projector is ceiling mounted and is 14' away from a 120 inch screen. The projector is lined up with the top of the screen and the lens is slightly to the left of center. This is where my old mount was for a Sony projector. (The Sony's offset has it set so you put the projector in line with the top of the screen and the lens is dead center anyway.) In order to get the image centered on the screen keeping the projector dead level, I need to use the lens shift and some zoom.
What I've found is this: If the zoom is all the way out at the largest setting and no lens shift is used the image is very focused. The lens shift seems to distort the picture and the zoom also seems to distort it. I've found that if I angle the projector down instead of using lens shift the image is better. What I plan on doing in the next couple days is taking it completely off the ceiling mount and setting it up at the optimal position where no lens shift or down angle is needed just to see if it is indeed the zoom and lens shift causing the problem.
The tech people at Panny insist it is a set up issue on my part though they have approved me to send it in for a tech to check out. I do not believe this is a set up issue. It's basically a projector issue because the zoom and lens shift should not be distorting the picture like that. Leaving the lens shift dead center, just the zoom alone distorts the focus enough making it impossible to get a 100 percent clear focus. I know what it should look like because when the zoom is full back making the largest image, it is a crisp sharp image.
The solution is to either get mine serviced, or drill some more holes in my ceiling, move the mound, and extend it down a bit as well so no lens shift or zoom is needed. Having owned 3 other projectors, I've never had one so picky with placement. The lens shift is completely useless since it creates distortion. The zoom is useless as well. I never has any such issue with zoom on my VPL-VW40. The zoom never distorted the picture in any way I noticed.
A couple things they told me that seem to help is to focus it with the zoom first then fine tune it with the focus. The problem is, when I do this and get a decent focus the image is larger than the screen size. Zooming to the proper screen size leaves me some issues no matter what I do in getting uniform focus. Right now I have the projector aimed down at about a 20 degree angle and a zoom that gives me a screen about 2 inches too larger on every side. I get a decent enough focus this way to not be completely annoyed reading a computer screen, but it isn't 100 percent. Not like a fully zoomed back, zero angle and zero lens shift focus.
I do plan on sending this in. It would be nice to hear what others have done with this issue and if anyone has sent the projector back yet based on this issue. I'd like to know Panny's response. All I have so far is that the tech staff think it's me not the projector.