New to PJ need Help

[stato]

Hello to everyone, this is my first time here.
I was originally thinking of buying the biggest plasma I could afford but am now having second thoughts. I reckon for close to the same price I could get a 42' plasma and a half decent projector. Any advice on a PJ would be helpful. I would have a budget of app. 1.5k for PJ. My room is about 5.9x3.2m and I believe I would have to roof mount it. I have raked ceilings and the viewing wall goes from 2.2 to 3.1 m. We sit app. 3.5m away from this wall but this is can altered a little each way. Light is not bright coming into room but would normally use PJ for night viewing anyway. Any input into the above would be greatly appreciated as this totally new to me.
Thanks

 

[stato]

If I was to get a Sanyo PLV-Z5 approximately how far back would I have to mount it to the ceiling for a 92' screen and how far down from the ceiling would it have to hang to project on screen which will have a centre approximately 1300mm from the floor, or should it sit higher. Ceiling height in front of the screen is 2900mm so I would assume the PJ would have to hang down a bit from this height. I am trying to get an idea where the screen will have to be and where the PJ will have to be to fit on the wall.
Any help in trying to figure this out would be appreciated.

 

[BMXTRIX]

I would go with the Panasonic AX100 over the Sanyo Z5 in a second. The Sanyo has a bit more lens shift, but I think Panasonic simply makes a better overall product.

I would also go with a 106" diagonal screen at 11' viewing range, which is about where you are at.

The projector can be about 10.5 to 21 feet away from a 106" diagonal screen.

The top of the screen can be, at most, just a few inches below the center of the lens with the AX100. The Sanyo has a bit more lens shift and the projector can be placed about 50% screen height above the top of the image. On a 106" screen, this is over 2' above the screen.

Your screen placement seems low to me. I would sit down in your chair in the room and see where your eyes feel comfortable, then that is where the center or upper 2/3 point of the screen should fall. 4'? That may work actually, but it is much more personal preference than 'set in stone'.

 

[stato]

Thanks for your reply and I value your input BMXTRIX.
When you say the Panasonic is preferable to the Sanyo is this just workmanship or does the difference in lumins count / or the contrast ratio. My understanding is lumins are better for lighter conditions and contrast is better for cinema conditions basically.
106'' will be too wide for my room when taking in consideration of where my speakers and sub are located. When looking at the wall my eyes seem comfortable at about 5' of the floor so am I to aim for this being about the middle of the screen. If so would that mean the Panasonic would have to hang about 7' from the floor???
Lastly do you have any other recommendations for PJ... Optoma HD70? or maybe Benq W500.
With my wife looking over my shoulder on this one I may only get 1 chance to get it right since all she has put up with on the audio side over the years.
Thanks again Stato.