Viewsonic Pro8100 1080p Projector - Page 16

Originally Posted by Omega

In the case of the lines, it does not really matter what I am watching. They become apparent on certain colour backgrounds (and the startup splash screen). It is pretty much a series of vertical lines that run through the picture. They dont move and there are pretty much 6 or 7 of them across the screen. Like I said though, they disappear after about 15 to 20 minutes of watching. I do note they seem to be less apparent now then they were a few days ago. I have only had the PJ a week and noticed them right after doing the firmware update to 2.51. Other than this I am totally impressed with this unit.

Originally Posted by NewfieC5

Can anyone provide the bolt pattern/measurements for the mount? Greatly appreciated. Want to work on it before the projector arrives!
Thanks

Originally Posted by novasol

Is it like in this picture? http://omat.pp.fi/DSC03518.JPG

Not my pj, it was posted before in this forum.

Originally Posted by bouda78

omega when you turn off the projector these lines disappear , i got these lines when i connected the wd players to the pj , and once i discounected it and turn off the pj then on it disappeared , i think you have one source that is not fully compatible with the 1920x1080p of this projector because these are verical lines , and this projector offer uxga and when you set some bluyray players to 1080p they signals wuxga which is the wide version of uxga. so that can cause vertical lines , and when you change the resolution to 720p it dissapear and check you hdmi connection they are sensitive and could cause easly such things, i had one done that before even i bought one that after a time it passed only video without audio, another avs member had the same problem and when he changed the hdmi connection to a good brand one this problem dissappear so far.
so check another bluyray player and another hdmi connection.

Originally Posted by novasol

You mean the distance between holes? There are three, two in front and one in back, forms a triangle. It's 24.5mm across the front and 25mm from each front to the back one.

Originally Posted by NewfieC5

Just what I was looking for - thanks

Originally Posted by CT_Wiebe

darth_majere -- You don't have to worry. The Pro 8100 has lots of vertical and horizontal lens shift, so you have lots of "wiggle" room. As a guide-line, you should mount your screen so that the lower 1/3 is below your seated eye-line (to the screen).

In my case, we sit semi-reclined so our screen bottom is actually at the same height (from the floor) as our eyes. This puts our eyes aimed at about 1/3 of the way up the screen. Our measurements are: eye-height = about 37", our 106" screen is 52" high, so that puts the top at 13" from our 8.5' ceiling. Remember all screen sizes are of the viewable area. Most screens have a 1.5" to 3" black border all around them (to block any stray light). The lens of the PJ is around 2" from the bottom of the PJ (the bottom is closest to the ceiling for a ceiling mount).

Then you can mount the Pro 8100 on a ceiling mount. Depending on how high your ceilings are, you may want to have a mount which puts the PJ about 6" to 8" from the ceiling (assuming an 8' ceiling height.

Remember the PJ gets mounted upside down (you flip the image in the PJ menu). You should try to mount the PJ so that the center of the lens lines up roughly with the center of the screen (left to right). The PJ has to be level (assuming the screen is perfectly vertical). You then use the lens shift to center the image on the screen.

As I mentioned earlier, you can find out that information around page 10 of the user manual: http://www.viewsonic.com/assets/005/5446.pdf. As for the distance of the Pro 8100 to the screen, see http://www.projectorcentral.com/View...ulator-pro.htm for the details. That is a completely interactive calculator, and each box can be adjusted for your setup. You enter the screen size and it will tell you the range of distances from the screen to the front of the lens (= projection distance). For instance, the PJ can be mounted anywere from 10' 10" to 17' 7" from a 106" screen (plus about 1/2 the depth of the PJ).

cpage -- You don't have to apologize, those are very good pictures (with the lights off), even without a "real" screen. Those "squares" look like your room light is reflecting off of something in your room that is lit by the light(s). Screen shots are best with no room light (as you found out).

Originally Posted by timfrommass

Ok so as a test I projected this onto a wrinkled white sheet hanging in the middle of an open walk way between a living room and kitchen, with tons of ambient light. Yeah, ideal conditions I think.

Even given all that, I'm already impressed. I haven't been in about a year or so, but for 7 years I was involved in custom home theater sales. I've seen everything from the Infocus 4805 that I used to own, to a 3 chip Runco with the finest supporting electronics. What I saw from this unit on the Bedtime Stories blue-ray for 5 mins was enough to get me very excited. I did some basic adjustments, and the picture I can tell is razor sharp. The colors are vibrant. I can't comment on blacks or shadow detail, because of the conditions I was watching it in, but I'm psyched. I was looking at a 92" image from 10 feet away, and I'm thinking that might even be too small. I used to sit the same distance from an 80" screen with a 480p and then 720p projector. I may stick with the 92" because I value the clarity of the image over the size, but something is urging me to get nearer to 100".

Either way, I can tell already that this will be money well spent. I'm also thinking that a matte white screen is probably going to be the way to go. Any other thoughts on that?