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*Official* Optoma HD80 thread - Page 63

post #1861 of 3520
11/8/07 at 6:19pm
Robruffo:

What is the "toothing" you refer to in the thread above? Could you describe it?

Thanks!
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post #1862 of 3520
11/8/07 at 6:23pm
Quote:
Originally Posted by Red-3 View Post

I bought my 52" rear projection TV seven years ago, when projectors were in my opinion too unreliable and expensive. My TV, with its VGA input has given me a pleasing, but not 'perfect' 600p image.
I've been watching the market ever since with an eye on projector technology. The HD80 looks like it might be the replacement I've been awaiting for my aging TV.
On reading this thread and seeing a few concerns, I have a few questions for those of you who own one.

My dedicated Home Theatre room is in a light controlled environment. The room is 13ft from wall to wall. According to distance calculations this should allow a 96" diagonal screen. Perfact for my room. The back wall is an internal wall which can be modified to project through. So the plan is to build a shelf behind the wall and make a hole in the wall and project through - very much like a projection room into a commercial theatre.

My ceilings are fairly low (just under 7ft) and I have read that this may be problematic with this model.
Could you confirm if I would encounter problems?

Thanks.

The HD80's output is so sharp, vivid, and free from geometric distortion that its like having a 96" LCD on my wall It produces the most pixel perfect image I have ever seen (I use my PC with the HD80 extensively). As someone coming from a great Sony 53" RPTV myself, I can assure you you'll be blown away.

You'll have to tilt the projector up slightly (the front feet are adjustable), and tilt the screen slightly to avoid using keystone correction, but your efforts will be well rewarded.
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post #1863 of 3520
11/8/07 at 11:08pm
Hey guys,

I just just joined the HD80 club. So far it looks SWEET! (Halo 3 on this thing is insane) Overall size is 136" on the wall.

I have noticed 2 thing though that I hop eyou can help me with:

I've centered the image on the wall, and it's parrallel on 3 sides of the wall. The ceiling and both side walls. However, the right bottom drops 1.5 " from left to right from the floor. I can't figure out why? So essentially it's not a proper rectangle, the right side seems longer then the left, making the bottom not parallel to the floor.

Any ideas?

Second: in the dark, I can see about a 3" frame around the projected image, that is just soft projected light. It is not part of the source video, but seems to be empty space, but since it's lit up, it's ceoming from the lens. Is this just lens bleed?

Thanks for your help. I'll post some picts soon
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post #1864 of 3520
11/9/07 at 9:19am
Quote:
Originally Posted by GlowingGhoul View Post

The HD80's output is so sharp, vivid, and free from geometric distortion that its like having a 96" LCD on my wall It produces the most pixel perfect image I have ever seen (I use my PC with the HD80 extensively). As someone coming from a great Sony 53" RPTV myself, I can assure you you'll be blown away.

You'll have to tilt the projector up slightly (the front feet are adjustable), and tilt the screen slightly to avoid using keystone correction, but your efforts will be well rewarded.

Awesome. I am planning to build my own screen after reading this article:
http://www.projectorcentral.com/diy_screen.htm
I guess I'll have to work out how much to tilt it once I have all the gear in place.

If you look at my sig link below, there are photos of my setup. I plan to remove the RPTV and cabinets and build a 96" - 100" screen on the wall behind.

I am so looking forward to this project! Any advice is welcome.
Now to convince the wife...
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post #1865 of 3520
11/9/07 at 9:59am
Quote:
Originally Posted by Red-3 View Post

Now to convince the wife...

Just buy it...she'll get over it...
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post #1866 of 3520
11/9/07 at 5:45pm
I'm ready to pull the trigger on the HD80.I'm going to get the package deal from Projectorpeople. I just read the review at Audioholics.com and they said you need at least a 9 foot ceiling just to have the 100 inch screen 30inches off the ground!I have 8 ft ceilings. I don't want to tilt the projector and use keystone. Can anyone help explain this to me. I don't want have to go LCD(AE2000).
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post #1867 of 3520
11/9/07 at 9:25pm
Quote:
Originally Posted by Sink View Post

Robruffo:

What is the "toothing" you refer to in the thread above? Could you describe it?

Thanks!

By toothing, I mean thin horizontal lines extending from or digging into the edges of objects, almost like what is drawn in a comic book behind something that is supposed to be zipping away.
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post #1868 of 3520
11/10/07 at 1:31am
Quote:
Originally Posted by Red-3 View Post

...I am so looking forward to this project! Any advice is welcome. Now to convince the wife...

Here, have her look at this video. It's a video of my wife installing the HD80.

http://youtube.com/watch?v=qGhf0JMSXZo

My wife loves the HD80. By the way, she also built the screen.
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post #1869 of 3520
11/10/07 at 6:38pm
The guy at Projector Reviews is a bit of an idiot...

1 - Try his color settings. (They are horrendous, and show a complete lack of understanding of how to calibrate a display - most of us could do better, without using a disk (without even pausing content (LOL)). If I used these colro settinsg, I would think my HD80 SUCKED.

2 - See if you can take what he says seriously, ever again.

I also find it rather suspect that no one compares the HD81 to the HD80 - in any review, including his Is it possible that Optoma has asked them not to?
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post #1870 of 3520
11/10/07 at 9:00pm
I don't think I'm experiencing the described "toothing" problem, but I'm also getting some vertical lines, mainly in scenes with red. Noticed this on "The 300" and other DVDs.

The vertical lines are evenly spaced, and look like dashed lines. Seems like some pixels aren't displaying and leaving black in place of the proper color. Doesn't happen in all scenes, just ones with red objects. Doesn't happen on the JVS blue startup screen.

My DVD player is JVC THD50, upscaling to 10801. 50' HDMI cable from Monoprice. DVDs play in Cinema mode.

I don't experience this with satellite (Dish 622) using another 50' HDMI but with the DVI adapter - to avoid the purple haze since I haven't done the firmware update yet.

Any thoughts?

Other than this, which is really not so noticeable (My wife hasn't mentioned anything) this projector is superb.
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post #1871 of 3520
11/10/07 at 10:21pm
Quote:
Originally Posted by robruffo View Post

By toothing, I mean thin horizontal lines extending from or digging into the edges of objects, almost like what is drawn in a comic book behind something that is supposed to be zipping away.

I get that every once in a while. What works for me is to turn it off then unplug it. It's a pain, but is back to normal when I turn it back on (and all settings are still saved).
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post #1872 of 3520
11/10/07 at 11:40pm
Quote:
Originally Posted by nnarb View Post

The vertical lines are evenly spaced, and look like dashed lines. Seems like some pixels aren't displaying and leaving black in place of the proper color. Doesn't happen in all scenes, just ones with red objects.

Sounds like your DVD player may suffer from CUE...

http://www.hometheaterhifi.com/volum...ug-4-2001.html
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post #1873 of 3520
11/11/07 at 1:12am
Something I don't quite understand:

The HD80 has EXCELLENT color saturation, even in dark areas, but yet the black levels are good, but not as good as a plasma's or LCD's would have to be to get such excellent saturation accross the luma range. A plasma or LCD would look a tad more washed out if its black levels were equal to the HD80. (Am I right about this?)

I am fascinated to know why or how that could be.

Does anyone know?

Also, does the HD use 12 bit Deep Color via HDMI 1.3?

I have almost never seen banding - far less than on my neighbor's Pioneer 5080 HD.

And one last question: Amazingly, first-person shooters do not blur at all when panning. It seems the response time is better than a CRT. Is this true?
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post #1874 of 3520
11/11/07 at 4:07am
[quote=Charles R;12184054]Sounds like your DVD player may suffer from CUE...

--------


Mine are evenly spaced, stationary, vertical lines and not near the edges of objects. Doesn't look like the "Toy Story" menu example.

Think I'll try to unplug the projector, and see if that works. If not, I'll send in some screen shots.

Thanks again.
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post #1875 of 3520
11/11/07 at 7:27am
I would try the DVD player using the DVI input since you don't see it on that input. If it shows up it must the player. You can also try having the DVD not upscale the image and see if it goes away. Another thing you can do is connect the DVD player to another display and see if it's still there.
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post #1876 of 3520
11/11/07 at 7:57am
Hello everyone. I'm posting here because it is an Optoma HD80 thread & on the 2.35:1 Constant Image Height Chat as well.
I'm in the market for my 1st HT projector. My room is 14'x26' & completely dark. My projector prospects, for the moment, are the BenQ W5000 & Optoma HD80. I'm also considering CIH.
Using the projector calculator at Optoma's website has me confused (see attached photos). If my screen height remains the same, why is the 2.35 projection distance 4.5' more?
LL
LL
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post #1877 of 3520
11/11/07 at 9:55am
Even though your image height is the same the width isn't. As such it requires a longer throw.
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post #1878 of 3520
11/11/07 at 10:47am
I thought that with a CIH setup, it was the optics in front of the projector that add the extra width, not the projector. With a CIH setup, the projector displays a "squashed (horizontally)" image in a 16:9 ration that the prism expands to 2.35.
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post #1879 of 3520
11/11/07 at 11:19am
How are you attempting to hit the width?

If you're doing horizontal stretch, you need to figure out offset and distance based on height of the 2.35:1 screen.
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post #1880 of 3520
11/11/07 at 12:38pm
Thanks everyone, I found the problem (see attached photo). At Optoma's website I failed to notice that HD80 & HD80 with Anamorphic could be selected - & it makes a big difference. I was using HD80 & changed the Aspect Ratio box from 16x9 to 2.35:1. Now we're reading 13.6 - 16.3' projection distance when selecting HD80 with Anamorphic .
LL
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post #1881 of 3520
11/12/07 at 5:15pm
I just updated my Toshiba XA2 HD DVD player firmware to 2.7. The HD80 still does not display the 1080p24 output. It remains at 1080p60 (or 1080p30, as it sometimes shows up on the OSD). The Toshiba now bitstreams the DolbyTrueHD to my Onkyo 605 receiver, but there still seems to be a problem with the HD80 accepting 1080p24 from it.
Has anyone else tried the new firmware with their HD80? I suppose the Toshiba is not "forcing" the 1080p24. Others apparently are having success with their non-HD80 displays, so it sounds as if Optoma needs to correct the issue.
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post #1882 of 3520
11/12/07 at 5:56pm
Have you tried 1080p/24 straight to the projector, bypassing the Onkyo?
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post #1883 of 3520
11/12/07 at 6:22pm
Quote:
Originally Posted by Lonely Surfer View Post

Others apparently are having success with their non-HD80 displays, so it sounds as if Optoma needs to correct the issue.

I believe the HD80 isn't sending the proper EDID information over the HDMI port. More or less not publishing the fact it can do 24fps. I have noticed the same issue with the Sony PS3, along with Samsung and Panasonic Blu-ray players.

They updated the EDID to work with the HD TiVo so hopefully they can work on this as well.
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post #1884 of 3520
11/12/07 at 10:19pm
Quote:
Originally Posted by Charles R View Post

I believe the HD80 isn't sending the proper EDID information over the HDMI port. More or less not publishing the fact it can do 24fps. I have noticed the same issue with the Sony PS3, along with Samsung and Panasonic Blu-ray players.

They updated the EDID to work with the HD TiVo so hopefully they can work on this as well.

Which firmware are you using? I see the hd80- display 1920x1080p 24HZ on my ps3 Firmware 1.93. Upgrading to firmware 2.0.
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post #1885 of 3520
11/12/07 at 10:30pm
Quote:
Originally Posted by Lonely Surfer View Post

I just updated my Toshiba XA2 HD DVD player firmware to 2.7. The HD80 still does not display the 1080p24 output. It remains at 1080p60 (or 1080p30, as it sometimes shows up on the OSD). The Toshiba now bitstreams the DolbyTrueHD to my Onkyo 605 receiver, but there still seems to be a problem with the HD80 accepting 1080p24 from it.
Has anyone else tried the new firmware with their HD80? I suppose the Toshiba is not "forcing" the 1080p24. Others apparently are having success with their non-HD80 displays, so it sounds as if Optoma needs to correct the issue.

I've read up on the 24fps issue and you would think with the XA2 now outputting the 1080p24 at the right frequency(23.97Hz) the HD80 would pick that up and display it correctly. Thats frustrating to hear that it still is not displaying it correctly. I heard that Toshiba would have a update soon to allow a forced mode so that 1080p24 will allow us to pick that but sounds like part of the problem is with Optoma. Guess we will have to wait for another Toshiba update with a forced mode.

I have been wavering back and forth between getting either the HD80, Benq W9000, or the Benq W10000. Tonight Circuit City has the HD80 for $250 off and I have a coupon so it looks like I will be joining the HD80 club real soon.

Thanks,
Mike
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post #1886 of 3520
11/12/07 at 10:32pm
Quote:
Originally Posted by Charles R View Post

I believe the HD80 isn't sending the proper EDID information over the HDMI port. More or less not publishing the fact it can do 24fps. I have noticed the same issue with the Sony PS3, along with Samsung and Panasonic Blu-ray players.

They updated the EDID to work with the HD TiVo so hopefully they can work on this as well.

So, do you think maybe he is getting 1080p24 from his XA2 but the display info on the HD80 is wrong? The Panasonic only does 1080p60 so what does it say on your HD80 that it is receiving?


Thanks,
Mike
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post #1887 of 3520
11/13/07 at 12:10am
Quote:


I'm ready to pull the trigger on the HD80.I'm going to get the package deal from Projectorpeople. I just read the review at Audioholics.com and they said you need at least a 9 foot ceiling just to have the 100 inch screen 30inches off the ground!I have 8 ft ceilings. I don't want to tilt the projector and use keystone. Can anyone help explain this to me. I don't want have to go LCD(AE2000).

[/i]

I use a 110 inch diag with 8 foot ceiling and have the projector mounted on a shelf tilted upwards and usinh max keystone and the image looks fanatstic. as good as flat Iknow because i tested it.
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post #1888 of 3520
11/13/07 at 4:21am
According to AV Guide:

Contrast of HD80 compared to Panasonic 50PX77U (Both after reasonable calibration)

(Ansi is checkerboard)

Panny: Peak contrast: 3111:1
Ansi: 235:1
Black : 0.018 ftl

HD80: Peak Contrast: 3522:1
Ansi: 208:1
Black: 0.005 ftl

So, basically, an HD80 has the same contrast as a Panasonic plasma! (Assuming you have a good bat-cave...)

AND... The plasma has way more dithering noise, and does not de-intrelace 1080i 24fps film properly (no 3:2 on 1080i), whereas the HD80 is rock-solid in this regard.

HMMM... $2500 or so bucks (plus screen) for 92 inches in 1080p....
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post #1889 of 3520
11/13/07 at 5:44am
Quote:
Originally Posted by coug7669 View Post

Which firmware are you using? I see the hd80- display 1920x1080p 24HZ on my ps3 Firmware 1.93. Upgrading to firmware 2.0.

It only works when you turn the option to Yes. The Automatic option doesn't work... hence the EDID isn't working properly.
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post #1890 of 3520
11/13/07 at 5:51am
Quote:
Originally Posted by mbw23air View Post

So, do you think maybe he is getting 1080p24 from his XA2 but the display info on the HD80 is wrong? The Panasonic only does 1080p60 so what does it say on your HD80 that it is receiving?

You can tell if the projector is receiving 24fps as the projector displays what's being input (also the color wheel slows down and it's much quieter). The new Panasonic does 24fps but it relies on EDID information which the HD80 isn't providing so you end up with 60fps.
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