Hw50es smokes my old epson 8500ub!!!
Pics and video to come!
Use the manual.
Here is the formula for diagonal screen size. Throw distance from screen to the lens
Diag x 1.25, then subtract 1.875 = minimum throw distance
Diag x 1.875, then subtract 1.75 = maximum throw distance
Example 120" diagonal screen
120 x 1.25 = 150 - 1.875 = 148.125 inches or 12 feet 4 1/8 inches for the closest distance
120 x 1.875 = 225 - 1.75 = 223.25 inches or 18 feet 7 1/4 inches for the furthest distance
1. yes but don't worry about it.
2. the projector would have to be placed in the middle of the screen vertically not to use lens shift
3. the formula is in the manual and also depends on how much horizontal lens shift you use. If you use none you can have the projector ~ 1 foot above the top of the screen.
If the center of your screen is at ~40", the top of the screen would be about 69" from the floor and the projector could go 12" above that or 81". The projector would have to hang down ~20". How long is your room? Would it be possible to shelf mount this on a back wall? You might want to consider raising your screen a little. Are you having multiple rows?
What makes you think it's the projector and not the source you're feeding your AVR? I agree with Mike...bypass the AVR HDMI to rule it out and also check what format your source is feeding the projector. I typically feed my HW50ES 1080p/24 and I've never seen any stuttering of video. However, I have seen stuttering with a streaming device (in a completely different setup) where it was not properly handling the source content.