Official Owners' Thread, Panasonic PT-AE8000U (US version) PT-AT6000E (European version) - Page 45

Originally Posted by 235 

I have been reading differing opinions on the ability of the PJ to use zooming and lens memory between 235 and 16:9 "while being mounted above the screen". I'll add my voice to the fact this cannot be done unless you are willing to tilt the PJ downwards and mess with the keystone adjustments. If anyone disagrees and has this working please share. I have tried everything and no luck. It looks like the center of the lens must be within the vertical range of the screen
This really messes up my plans to have the PJ in my rear soffit.

Originally Posted by 235 

I have been reading differing opinions on the ability of the PJ to use zooming and lens memory between 235 and 16:9 "while being mounted above the screen". I'll add my voice to the fact this cannot be done unless you are willing to tilt the PJ downwards and mess with the keystone adjustments. If anyone disagrees and has this working please share. I have tried everything and no luck. It looks like the center of the lens must be within the vertical range of the screen
This really messes up my plans to have the PJ in my rear soffit.

Originally Posted by Xank 

Darbee Dangblet!

Been reading about this little guy in other forums and decided to give it a shot with my PT-AE8000U and...

Dang! It really does work. I'm using it at 75% green mode, and turning on the Darblet appears to focus the picture well beyond what the optical focus of the projector can do by itself. I know it's in some sense an illusion, but this illusion is perceptually dramatic. I currently have my Detail Clarity set at +7, and the combined effect is just stunning, with no artifacting that I can discern. It never looks overprocessed, it just looks better. I can also tell you that Darblet will do it's thing no matter what Detail Clarity setting you have, it will just incrementally increase perceived focus/sharpness at all settings.

I bought it from Amazon so I could return it easily if I was not impressed. I will not be returning it.

Originally Posted by 235 

I have been reading differing opinions on the ability of the PJ to use zooming and lens memory between 235 and 16:9 "while being mounted above the screen". I'll add my voice to the fact this cannot be done unless you are willing to tilt the PJ downwards and mess with the keystone adjustments. If anyone disagrees and has this working please share. I have tried everything and no luck. It looks like the center of the lens must be within the vertical range of the screen
This really messes up my plans to have the PJ in my rear soffit.[/quot
Oh no - this is what I'm planning to do. It's my first shot at setting up a front projection system. I'm not sure I follow what you meant when you said "It looks like the center of the lens must be within the vertical range of the screen "... Can you please describe how the lens must be within the vertical range of the screen?

Originally Posted by PixelPusher 

Ob

This is very disappointing. I had been planning to buy this projector for this exact reason. It's the only project that I've been able to find that has enough light out put for my 156" screen and has lense memory. What is the point of lens memory if you can't use it to toggle between 16:9 and 2.35:1.

What is the downside of using the keystoning? Image distortion? Is that something you have adjust manually every you switch or can it be tied into the lens memory config?

Originally Posted by YesAnotherTweet 

There must be something wrong cause in page 24 of the manual it clearly shows that you can extend the shift right up 50% below lens center (which is 100% down shift). Even my old Epson 6500U can do the same with no problems.

Originally Posted by cr136124 

Any chance you can post a couple of pics with and without the Darbee? TIA

Originally Posted by rstahl 

Wow what great info for this thread! A while back someone inquired about any Darbee users, but no one replied. I thought this was odd as the unit got an almost too good review to believe.

Can you elaborate on 2D vs 3D? The review I recall from Home Theater Magazine loved its 2D enhancements.

Originally Posted by 235 

No problem positioning above the screen if you aren't zooming and using lens memory.

Originally Posted by Xank 

Well cr I gave it shot last night. Unfortunately, I am not expert enough with my camera to capture comparison photos in a way that do the difference justice. The shots were ending up overexposed and the camera was doing weird things with autofocus and face detection. I just didn't have the patience to make sure I took two consecutive identical photos, partly because my house is a mess while moving around a lot of furniture.

I will say, though, that the comparison gallery on Darbee's site are not exaggerations. If you want to know what the difference will look like, those are pretty accurate.

Also, I will retract what I said previously about there being absolutely no artifacts produced by Darbee. I discovered one. When the image contains a serifed font (e.g. Times or Garamond) in a light color like white over another non-black colored background, Darbee produces small horizontal lines between the tips of the serifs on adjacent letters. It's literally like a spider has crawled around on the letters and spun single threads (not full webs) between the tips of letters. You can see this in the opening credits of Game of Thrones. I have not seen this happen with non-serifed fonts (like Helvetica). Also, the effect is not visible when it's a white font on a black background (closing credits).

Obviously this is an incorrect modification to the source image, but unlike other types of artifacting such as ringing/halos, it doesn't really look bad or displeasing. In fact, if you didn't know it was an artifact, you might actually think the fonts are supposed to look that way. I've definitely seen similar connecting lines done in other cases as intentional typographic styling. Even though it's wrong, it's kind of cool. Don't get me wrong, I would prefer it didn't do this, but bottom line is it only happens in very specific circumstances (opening credits with particular fonts and color combinations), and doesn't actually look ugly to me, so I'll live with it to get the sharpening/depth benefits the rest of the time.

Originally Posted by GWCR 

Hey 235. I was concerned about that too. My 8000 is in fact installed with the center of the lens higher than the top of the screen. Center of lens is 6" from soffit, top of screen is 8" from soffit. Additionally, I was slightly off when I installed the mounting bracket, so it is about 1/2" left of vertical center as well. PJ is mounted level and plumb.

Here is where the joystick and v-area position comes in to play. First I put in a 16:9 source, zoomed and used the joystick so the video was in the correct position on the screen. Focused and saved the lens memory position as 16:9. Then I put in a 2.35:1 source and zoomed so the width was correct. Then I used the vertical lens shift to move the image to the correct position on the screen (I ended up at +33). Focused and saved the lens memory position as 2.35:1. Set the PJ to auto detect AR, and it works like a charm.

So bottom line is yes you can mount it higher than the screen and get it to work without tilting the PJ. Now, I don't know what the max distance is that the v-area position can compensate for, but it does work.

Originally Posted by xeonicxpression 

Well, Visual Apex replied back to my email. I asked if they could help me get an RMA and they told me to just contact Panasonic myself and provided the phone number. That's kind of disappointing. Well, hopefully Panasonic isn't too big of a PITA to deal with.

Originally Posted by AFlo79 

j.woodhouse,
Were you able to fix the poor light uniformity issue? I'm seeing the same issue in the bottom left corner of the screen.....mainly when it's black or other dark color. Did the WOW disc help?

Originally Posted by 235 

Here's my light-pattern after adjusting for 16:9:





After zooming in for 2.35 image:




After the zoom I try to use the on-screen menu: LENS Control, V-Area Position to adjust the picture vertically. The problem is that vertical adjustment only pulls up the bottom of the image, it does not move the top of the image up to fill that gap near the top. Am I using the right menu adjustments? I noticed if the PJ lens is set to the same height as the screen then the zoom does NOT cause the image to drop.

Originally Posted by andymo 

Following the suggestions here I tried using REC709 while watching 3D and noticed a significant different in ghosting. It worked really well.

Originally Posted by GWCR 

Make sure you put in a 2.35 source when you zoom and adjust the v-area position. In a sense, the top letterbox bar will be moving off the top of the screen. Got any actual screen shots?

Originally Posted by 235 

Here's my light-pattern after adjusting for 16:9:





After zooming in for 2.35 image:




After the zoom I try to use the on-screen menu: LENS Control, V-Area Position to adjust the picture vertically. The problem is that vertical adjustment only pulls up the bottom of the image, it does not move the top of the image up to fill that gap near the top. Am I using the right menu adjustments? I noticed if the PJ lens is set to the same height as the screen then the zoom does NOT cause the image to drop.

Originally Posted by 235 

^^^ Thanks for the suggestion but moving the 16:9 image down using the v-area shift causes the top of the image to come down but the bottom stays fixed. In doing that I end up with an image that cuts off part of the full height of the 16:9 source

Originally Posted by rstahl 

Guys I"m pretty sure this was covered in this thread before. There is now way to make the 16.9 to 2:35 conversion unless the projector is mounted in the middle of the screen. That being said I do get interrupted at work and home pretty much every day while trying to read.

Let me go back and look.

Originally Posted by 235 

'Van raise'? Do you mean angling the screen at the same angle as the PJ's forward tilt? Did you find you had to give it much tilt and is it noticeable?

Originally Posted by 235 

I tried a 2.35 source and no-go. After the manual zoom has lowered the PJ's image (best seen when feeding a 16:9 source), the electronic vertical adjustment only raises the image content within that thrown image. It shifts the image up throwing away the upper letterbox from 235 source but does not move the illuminated area back up to compensate for the downward shift from the zooming. Are you sure your PJ is level, above the screen and that you aren't spilling any 16:9 content onto the upper frame of your screen?

Originally Posted by YesAnotherTweet 

If that's the case then the 8000 is out for me. I am right at the top or above the top of screen. I guess I will have to see if the JVC does better in this regard.

Originally Posted by fgsouza 

Did you find REC709 better than Cinema2 for 3D?

Originally Posted by rstahl 

My apologies after rereading my post I noticed a spelling error In my reply. I went back and did my first edit.

Originally Posted by rstahl 

My apologies after rereading my post I noticed a spelling error In my reply. I went back and did my first edit.