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Official Owners' Thread, Panasonic PT-AE8000U (US version) PT-AT6000E (European version) - Page 96

post #2851 of 3214
Quote:
Originally Posted by Reefdvr27 View Post

I have it, but wanted to get an idea of what size screen some of you guys have!

There's a whole bunch of factors like seating distance, screen ratio, mounting location, ceiling height, preferred content, etc... My personal suggestion would be to go as large as you can stand. There's a reason you're getting front projection instead of a 80" TV! I'd see how large the image is before I start noticing the pixel structure of the projected image. Then watch it for a while to make sure it works. I do here of people being initially overwhelmed by the size and later wishing they got a larger screen after getting accustomed to the size.

There's all sorts of math you can do based on THX guidelines, Throw ratio, seating distance calculators, and on and on. As suggested previously, there's no substitute for just playing around with the image on a wall if it's feasible. You'll need to make sure the size works for you in your room with your equipment (speakers and such). Then you also have to consider how you want to handle Cinemascope movies versus standard HD and whether you tolerate black bars or not. You're going to create a million more questions for yourself as you start deciding on a screen and size. Have fun!
post #2852 of 3214
Interesting and informative chart concerning "Center of Lens" placement height possibilities using the CIH Lens Memory feature:

photo PanasonicLensMemoryChart_zpsa623ee3e.jpg
post #2853 of 3214
Quote:
Originally Posted by HTMG View Post

apw2607,

Thanks, I didn't think to look in the 7000u thread, but I believe you are right in that this is the issue that I'm seeing. Is this frame rate / frequency issue happening for everyone or just a few? I did not have any issues like these with my past Panasonic PJs. It seems crazy that you'd have to match source material frame rate with the output rate in order to get a smooth picture. Not to mention, you don't have that option with the ATV or Roku.

This just sounds like something isn't working correctly. It seems like it has to do with the projector, otherwise it would be widespread across many devices. It's hugely annoying to me and the wife. Oddly enough, using my Pioneer Elite BD player to stream Netflix, the judder seems to be about 99% better... go figure.

I'd love to get this resolved as well as the convergence issue. Then I'd be happy with it. The colors, brightness, detail and contrast are excellent and leaps and bounds ahead of my AE900u I had last.


My 8000 is perfectly smooth from my HTPC and from the PS3 when playing any sorts of videos (both run through my Denon AVR). It's perfectly smooth with interpolation on or off. I would say your problem is not normal.

On the HTPC I have to set either 23Hz or 59Hz output mode. If I select 24Hz or 60Hz there is a little motion artifact every 30 seconds or so. This is because Windows truncates the refresh rate, so selecting 23Hz is actually outputting 23.976 and selecting 59 is actually outputting 59.94Hz. Selecting 24Hz and 60Hz outputs exactly those rates and leads to some motion artifacts since those aren't the right rates.

On the PS3 though I didn't mess with outputs it's just outputting 1080p at whatever else is default and works fine.
Edited by SirMaster - 1/2/14 at 7:56am
post #2854 of 3214
Quote:
Originally Posted by mtmason View Post

There's a whole bunch of factors like seating distance, screen ratio, mounting location, ceiling height, preferred content, etc... My personal suggestion would be to go as large as you can stand. There's a reason you're getting front projection instead of a 80" TV! I'd see how large the image is before I start noticing the pixel structure of the projected image. Then watch it for a while to make sure it works. I do here of people being initially overwhelmed by the size and later wishing they got a larger screen after getting accustomed to the size.

There's all sorts of math you can do based on THX guidelines, Throw ratio, seating distance calculators, and on and on. As suggested previously, there's no substitute for just playing around with the image on a wall if it's feasible. You'll need to make sure the size works for you in your room with your equipment (speakers and such). Then you also have to consider how you want to handle Cinemascope movies versus standard HD and whether you tolerate black bars or not. You're going to create a million more questions for yourself as you start deciding on a screen and size. Have fun!
thank you for taking the time to post this. I have no problem going big! I was originally going to get a new Sharp Aqouis 90" but I wanted a projector for the theater feel and large screen. I have my work cut out for me!
post #2855 of 3214
Is there any convergence error correction on this projector? I know Epson has.
post #2856 of 3214
Quote:
Originally Posted by Skylinestar View Post

Is there any convergence error correction on this projector? I know Epson has.

No user-available convergence correction.

You can send it in to Customer Service for some kind of adjustment. I tried to discover what they do (so maybe I could do it) but have not been able to find any information on what gets done. The most recent owner who had convergence issues had them so bad that CS replaced the whole optical block.

By the way, the Epson correction is electrical, not mechanical. They cause pixels to be shifted in the LCD panels, which makes me think some information is lost in the process.
post #2857 of 3214
Quote:
Originally Posted by kendo70433 View Post

By the way, the Epson correction is electrical, not mechanical. They cause pixels to be shifted in the LCD panels, which makes me think some information is lost in the process.
How about the Sony HW55ES?
post #2858 of 3214
Quote:
Originally Posted by Skylinestar View Post

How about the Sony HW55ES?

I searched the manual, but didn't find any details. But thinking about it, at the price point of these projectors, any convergence would have to be merely electronic. Otherwise the projector would have to have a couple of motors for each LCD panel. That would get pretty expensive.
post #2859 of 3214
This is a long shot, but does anyone have a dead PT-AE8000 they'd be willing to send me? I would like to take one apart to see what mechanical adjustments can be done for convergence.
post #2860 of 3214
Quote:
Originally Posted by Gruson View Post

What shelf mount are you guys using? I saw some pics earlier in the thread. I never even thought of using a shelf mount but that would be perfect for me since the 8000 is too big for my in wall shelving! Link?
I did a cut-out in the wall behind primary seating location and mounted a simple shelf to the wall studs in the room behind the theater. Framed in the cut-out and placed a clear piece of Lexan (not Lexan but that type of thing) over the cut-out. It looks really sharp. Shelf mounting this projector high, not above the screen about 6-8" below the top frame, was a real snap. It took me about an 30 minutes of fine-tuning adjustments to the projector while on the shelf to get everything 100% aligned. That was 6 months ago and everything still is dead-on and looking great. I will try to get pics uploaded later. All in all, this was MUCH easier to setup than hanging upside down from the ceiling as I had ample room to adjust the projector and get everything in to alignment.
post #2861 of 3214
Quote:
I did a cut-out in the wall behind primary seating location and mounted a simple shelf to the wall studs in the room behind the theater. Framed in the cut-out and placed a clear piece of Lexan (not Lexan but that type of thing) over the cut-out. It looks really sharp. Shelf mounting this projector high, not above the screen about 6-8" below the top frame, was a real snap. It took me about an 30 minutes of fine-tuning adjustments to the projector while on the shelf to get everything 100% aligned. That was 6 months ago and everything still is dead-on and looking great. I will try to get pics uploaded later. All in all, this was MUCH easier to setup than hanging upside down from the ceiling as I had ample room to adjust the projector and get everything in to alignment.

Why even bother with the Lexan? I worry about degrading the picture. I couldn't hear my former dVision 1080p projector with 2 lamps running at all - despite blow dryer like cooling fans.
post #2862 of 3214
Quote:
Originally Posted by Craig Peer View Post

Why even bother with the Lexan? I worry about degrading the picture. I couldn't hear my former dVision 1080p projector with 2 lamps running at all - despite blow dryer like cooling fans.
Sound and aesthetics. There are some household services in that room (water purifier, conditioners, etc) and the air handler for the main and basement floors. Thankfully the water boiler is elsewhere. With the Lexan it looks finished. I did worry about degradation as well, but if it is happening I can't see it. I plan to clean the window semi-annually, with my first cleaning yet to happen, but I am just now arriving upon that time. I used this placement method because otherwise I had a big box (upside down or not) in my theater room, and the I had the luxury of having a room behind my theater room that I could take advantage of. This projector is pretty quiet, but it is also pretty big.
post #2863 of 3214
Has anyone had luck exchanging their PT-AE8000u for color uniformity issues? Mine has really bad color uniformity... when viewing a white screen the right side is pink and the left side is green. I'm thinking I'll just call B&H and request an exchange... the only problem is I have already submitted the rebate, so the UPC is cut out of one of the shipping boxes.
post #2864 of 3214
Quote:
Originally Posted by thedigitel View Post

Has anyone had luck exchanging their PT-AE8000u for color uniformity issues? Mine has really bad color uniformity... when viewing a white screen the right side is pink and the left side is green. I'm thinking I'll just call B&H and request an exchange... the only problem is I have already submitted the rebate, so the UPC is cut out of one of the shipping boxes.

That should be ok. I exchanged mine for a new one and the UPC was cut out. No issues and the new one just arrived...hopefully no issues this time!
post #2865 of 3214
Quote:
Originally Posted by thedigitel View Post

Has anyone had luck exchanging their PT-AE8000u for color uniformity issues? Mine has really bad color uniformity... when viewing a white screen the right side is pink and the left side is green. I'm thinking I'll just call B&H and request an exchange... the only problem is I have already submitted the rebate, so the UPC is cut out of one of the shipping boxes.

 

You know, mine has a bit of this issue, and... I don't care. The only time you notice it at all is complete black or white. If I'm viewing complete black or white it's not like the picture quality matters. All I see in this thread are people complaining about 1 pixel convergence issues and I gotta say, get over it. Seriously. Once you see what the picture quality looks like with a film that has been shot well, especially on bluray, you will not notice any of these ridiculous issues. Your picture settings are 100% more important to how your entertainment looks on the 8000 than a misaligned panel or invisible microjudder. And before you judge me, know I am a professional film editor who does nothing but color correct films all day. It's a great projector. If the picture looks good, enjoy it. Don't search for things to make yourself unhappy with what you've got.

post #2866 of 3214
Just got mine. Unfortunately it has rather terrible misconvergence:

mp4w.jpg

What do you think? If I had bought this pj for movies I might be able to live with it, but since I bought it for general computer use, such as web development and programming, it's rather unacceptable as I can't see the real color of text. Text just appears like super colorful candy.

The misalignment seems to be about 2,5pixels. My last pj was an ae3000 which had very decent alignment (slightly less than 1 pixel).
post #2867 of 3214
Quote:
Originally Posted by Bradley Mike View Post

Just got mine. Unfortunately it has rather terrible misconvergence:

mp4w.jpg

What do you think? If I had bought this pj for movies I might be able to live with it, but since I bought it for general computer use, such as web development and programming, it's rather unacceptable as I can't see the real color of text. Text just appears like super colorful candy.

The misalignment seems to be about 2,5pixels. My last pj was an ae3000 which had very decent alignment (slightly less than 1 pixel).

 

My previous rant aside, return it!

 

Why on earth would you use a projector for "general computer use" in the first place? It is a machine built for watching movies and playing games. I would return it for a 50" 4K monitor if you need the size, or at least a DLP projector for computer use, which is much better for that kind of thing. But neither will be able to compete with an actual, you know, "computer monitor"

post #2868 of 3214
Panasonic has not release a 4K projector for HT, EPSON did not either
post #2869 of 3214
Quote:
Originally Posted by wse View Post

Panasonic has not release a 4K projector for HT, EPSON did not either

 

I said 4K monitor, not projector. There are plenty of 4K monitors available, and some reasonably cheap 4K TVs

post #2870 of 3214
Quote:
Originally Posted by Bradley Mike View Post

Just got mine. Unfortunately it has rather terrible misconvergence...

It's hard to judge with that image. It almost could be a side effect of some font smoothing technology like Windows ClearType. What does a 1-pixel white grid on a black background look like?
post #2871 of 3214
Quote:
Originally Posted by fstopdigital View Post


My previous rant aside, return it!

Why on earth would you use a projector for "general computer use" in the first place? It is a machine built for watching movies and playing games. I would return it for a 50" 4K monitor if you need the size, or at least a DLP projector for computer use, which is much better for that kind of thing. But neither will be able to compete with an actual, you know, "computer monitor"

I'm using this pj for the first time right now, and I just noticed that if I turn saturation down to zero from the graphics card control panel, or the pj menu, black text is perfectly black. So this doesn't seem to be panel misalignment, but something else? What on earth is going on?

I have a visual impairment that prevents me from working with a computer screen that is too close, so I have to use a pj.
post #2872 of 3214
Quote:
Originally Posted by kriktsemaj99 View Post

It's hard to judge with that image. It almost could be a side effect of some font smoothing technology like Windows ClearType. What does a 1-pixel white grid on a black background look like?

ClearType indeed! Text looks fine now after adjusting ClearType appearance from control panel. Thanks! smile.gif
post #2873 of 3214
Quote:
Originally Posted by Bradley Mike View Post


I'm using this pj for the first time right now, and I just noticed that if I turn saturation down to zero from the graphics card control panel, or the pj menu, black text is perfectly black. So this doesn't seem to be panel misalignment, but something else? What on earth is going on?

I have a visual impairment that prevents me from working with a computer screen that is too close, so I have to use a pj.

 

OK that makes a little more sense. I was going to ask if you had adjusted cleartype settings. I have the exact same issue in win 7. Cleartype helps but it's not perfect. Again, I would still recommend a DLP projector over the panasonic for your needs, as the 3 panel architecture is just not going to be as sharp. The 8000 excels in color depth and response time for movies & video, and low latency for gaming

post #2874 of 3214
I love how good the image is on mine.
Nothing like the knee jerk/flinch/reaction to get your heart rate up while watching a film.
I'm not sure I can improve my system much more. The SQ and IQ are the best I've experienced (limited admittedly, but wow).
This is hard for me, I like to tweak...
post #2875 of 3214
Quote:
Originally Posted by fstopdigital View Post


OK that makes a little more sense. I was going to ask if you had adjusted cleartype settings. I have the exact same issue in win 7. Cleartype helps but it's not perfect. Again, I would still recommend a DLP projector over the panasonic for your needs, as the 3 panel architecture is just not going to be as sharp. The 8000 excels in color depth and response time for movies & video, and low latency for gaming

I'm also extremely allergic to rainbow effect so no DLP, and to screen door effect so no Epson. I'm very happy with this projector now. Misalignment is only one pixel and text looks nicely black from my viewing distance. Cleartype settings didn't fix all text, and pdf files still look like crap but at least I can't blame the pj. Normal mode has a pretty strong green tint on the sides of the screen, but now that text looks fine I couldn't care less. I just hope this doesn't start blinking with time, like my old ae3000 did.

I'm planning to get a 4K projector as soon as there is one available without latency. Using a mouse with input lag is terribly frustrating and I was heartbroken when I realized the new Sony vw500 has crazy latency and no game mode to fix it. It does have game mode for color but it doesn't effect lag, which is almost a thenth of a second. The vw1000 has slightly less latency but it's too expensive currently.
post #2876 of 3214
All,

I am about to buy all the gear for my dedicated media room and the panny 8k had been my projector of choice. Got mislead by some of the diagrams in the manuals and thought I hade more lens shift range than available. A thorough read of documents leads me to believe that top screen edge can be roughly 1/2 a screen height below center of lens by using lens shift. That seems logical too based on the quoted 2.9 image height adjustability.

Does anyone concur with that assessment? I'm seeing quotes of 5-8" here, which seems really low compared to what I think it should be.

Thanks,

Russ
post #2877 of 3214
Russ,

If what you are planning to do is to create a 16 by 9 screen, then the lens shift range is extremely wide. But when doung 2.40:1 / 16:9 CIH, it becomes much more limited because the Lens Memory feature can accommodate just so much adjustment.
Edited by MississippiMan - 1/12/14 at 10:06am
post #2878 of 3214
Definitely going with 2.35 screen and CIH. Also been looking at the jvc x35 and need to get some definitive answers on range with CIH. I unfortunately have 11' ceilings (10' at soffit) and want to minimize my drop so I don't end up with a 4' pole in the middle of the room. When lens shifted, does center of image change height when zooming? This would explain the loss of range when doing CIH.

Russ
post #2879 of 3214
It seems I have to adjust the focus every couple movies.
Any ideas?
post #2880 of 3214
Weird issue. It seems like the bottom half and the top half of the image can't both be focused properly at the same time. When I properly focus so the bottom is crisp, the top goes out of focus. And vice versa.

Has anyone seen anything like this? I'm using a spandex AT screen.

I'm borrowing a friend's BR Disney WOW disc this week to see if that fixes anything somehow.
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