Optoma 8200 Review - Page 4 - AVS Forum
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post #91 of 211 Old 03-08-2009, 12:09 PM
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Quote:
Originally Posted by Mark Petersen View Post

Okay so just so I understand this correctly. You're saying that with typical test patterns used for adjusting brightness and contrast that you're not seeing a difference with any of the dynamic black modes correct? This sounds consistent with what I noticed also.

If this is true then do I take the earlier comments about tuning to a specific DB mode to mean adjusting it with a dark pattern when the DB mode is engaged? It this is all true then it sounds like what a person has to do to avoid white crush in dark scenes is to "tune"/adjust it for the specific dark scene source content that they are viewing which seems pretty impractical when watching a new movie. Not only that but once tuned the contrast setting will be wrong in bright scenes when DB is not engaged.

They should just tune with the DB off then pick what ever cinema Iris mode they like for a certain movie. That scene I mentioned in the post above you could see the windows with light were all crushed out with contrast at the factory number 44. But the iris changes weren't noticable.

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post #92 of 211 Old 03-08-2009, 12:56 PM
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Guitarman,

Could you also comment on the other features... frame interpolation, super wide, fan/color wheel noise, best vs. brightest modes. Thanks! I use my PJ for gaming much of the percentage of time, so the FI is factor over, say the JVC RS-10, and the ability to utilize the superwide, may allow me to put off CIH for a while.

Thanks!

Optoma HD8200, Denon AVR-2309ci, PS3
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post #93 of 211 Old 03-08-2009, 06:02 PM - Thread Starter
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Quote:
Originally Posted by guitarman View Post

I'm guessing with this type of scene any iris would be visible, if not what could be a way to fix it. Seems there's a trade off of having an Iris act lightning fast or having it gradually making it changes. What do you think?

I would guess that the best thing is to have it detect abrupt scene changes and then change the iris as quickly as posible at that time. With relatively static scenes the iris should stay pretty consistent throughout. I'm sure that there will always be slow scene change like a fade to black where this can't be done though. A frame look ahead will help the algorithm but then that means buffering frames and adding delay and gamers would complain. But the look ahead could be disabled though (kind of like how DVDO has a fast deinterlacing mode on the VP50).
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post #94 of 211 Old 03-08-2009, 06:38 PM
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"I would guess that the best thing is to have it detect abrupt scene changes and then change the iris as quickly as posible at that time."

Monday I'll see if we have control to speed it up in the servcie menu and see how that goes. Still haven't had darkness time to use colorfacts but OTB mine looks very good re the graysale for coloring. Looks like the coloring is better on this one vs the H79 H80/81 their last couple of high end projectors.

24fps is looking good and I left the Pure engine at what the factory likes, I just added a number on the detail.

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post #95 of 211 Old 03-08-2009, 06:59 PM
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I have a great scene to work on the Iris with. The matrix reloaded the scene where Neo talks to the oracle in the park. Here the Oracle's lighting is brighter than Neo's shot where the video is darker, not allot darker but enough to see when it goes to Neo the Iris pumps the light level darker. I'll ask if there's a way to adjust the Iris to ignore slight changes in scene darkness, which is the best way to handle these changes imo.

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post #96 of 211 Old 03-08-2009, 07:27 PM
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I'm on to something. I took a look at Heroes Scottyb asked me to. Now this show has mid tones that move in and out like crazy and I could see the Iris trying to stay with it and the pumping was very noticable. Just a small tweak in the service menu made it go away. In DA all it took was lowering the Full Step down by one number.

Yes, I went back to the Oracle scene and it still had a slight hang over but was improved 80%, one more number down on the Full step totally cleared it up. You guys can tweak your iris the same way, good luck.

Naah it was an illusion What happens is at times when you go to the service menu to change DA the Iris is disabled and when you go back to the main menu it's still disabled until you cycle the DB to off and then back to Cin1 or Cin2. So what I was seeing was video with DI off. The Matrix Reloaded Chaper 13 Oracle scene is a Iris torture test. Still most all other times and movies I find I don't notice the Iris.

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post #97 of 211 Old 03-08-2009, 07:50 PM
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Ok this hasn't been put out yet but since it's so usefull. Remember write down your original DA numbers for safe keeping. Don't make big changes.

Service access,
On the remote hit the power off button, left, left, up

Exit with return.

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post #98 of 211 Old 03-08-2009, 10:36 PM - Thread Starter
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Quote:
Originally Posted by guitarman View Post

Still haven't had darkness time to use colorfacts but OTB mine looks very good re the graysale for coloring. Looks like the coloring is better on this one vs the H79 H80/81 their last couple of high end projectors.

If yours is like mine the color temp for the whole greyscale will be high. One thing I really liked about this unit though is the greyscale shows no banding or other artifacting. Perfectly smooth ramps.
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post #99 of 211 Old 03-09-2009, 09:23 AM
 
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Tom,
Link doesn't work.
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post #100 of 211 Old 03-09-2009, 09:23 AM
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I'm out of town and viewing this thread via phone so may have missed it.

I tried calibrating with DI on cin1 and can not get grayscale as good as when I cal. with DI off. Is it just me or is anyone else see the same thing
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post #101 of 211 Old 03-09-2009, 10:33 AM
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Because of the light level movement you can't grayscale tune with DI on. Turns out I could tune basic blacks and whites with DB off and not get white crush when putting DB back on.

Scotty my remote server co info got messed up, I'll re post the info later.
Tom

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post #102 of 211 Old 03-09-2009, 10:49 AM
 
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Tom,
Have you checked out any other movies since you did the iris adjustment in the service menu?
I'm gonna try it tonight.

Scott
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post #103 of 211 Old 03-09-2009, 11:27 AM
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I just threw in an edit a couple of posts back, seems the Iris gets disabled when you go to the service menu most times, at least on my machine it does. When back in the user menu I cycle the iris to off than back to cin1 and it starts functioning again. I have to talk to Wing about the 3 choices in DB to see what each one is doing.

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post #104 of 211 Old 03-09-2009, 11:58 AM
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It's the same on mine as well. I thought I had tried that setting
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post #105 of 211 Old 03-09-2009, 03:28 PM
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Quote:
Originally Posted by Sandwedg View Post

Guitarman,

Could you also comment on the other features... frame interpolation, super wide, fan/color wheel noise, best vs. brightest modes. Thanks! I use my PJ for gaming much of the percentage of time, so the FI is factor over, say the JVC RS-10, and the ability to utilize the superwide, may allow me to put off CIH for a while.

Thanks!

At 24fps I saw no judder, the fan and color wheel are whisper quiet. I don't even know if it's coming on when I first fire it up. The bright choice is only a couple of hundred extra lumens but it's far from D65k and looks washed out. Bright mode will get around 700 lumens that should be enough for sports or ambient light type viewing. Superwide does what it does without making the image soft.

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post #106 of 211 Old 03-09-2009, 05:20 PM
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The breakdown on what the items are in the DA menu.

Full Step effects the contrast, there isn't much room there from the factory setting. You can make blacks darker but they're at a low level already.

1/4 Step effects Cin1

1/10 Step effects Cin2

Spoke is an overall gamma item

Multiple Table should be left alone at factory 1.

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post #107 of 211 Old 03-09-2009, 06:47 PM
 
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So if I increse the # in the service menu does it make the iris faster or slower?

Scott
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post #108 of 211 Old 03-09-2009, 07:14 PM
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From what I saw lowering it makes it less but to me where the factory had it was the sweet spot.

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post #109 of 211 Old 03-09-2009, 10:09 PM
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Is the 8200 also coming by the alias 82?
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post #110 of 211 Old 03-10-2009, 01:56 AM
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Quote:


Is the 8200 also coming by the alias 82?

Yes, that's its name over here in Europe. By the way, MSRP in Germany is 2999.- .
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post #111 of 211 Old 03-10-2009, 04:35 AM
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Yes I think the factory setting is where to keep it. I have tried just about every combination I can think of. I don't think any setting really speeds up or slows the iris down just how much light it lets out.

Scotty, If you ended up reseting it like I had told you early go back in and on the 1/10 setting take it back to 85. For what ever reason reset takes that figure down to 84 but comes from the factory at 85.

I saw less of the iris on 84 but after looking at it with test patterns the overall brightness is brought up so you don't get as deep of blacks. Which is way I think I did not see the iris much in cin2.
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post #112 of 211 Old 03-10-2009, 10:30 AM
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Quote:
Originally Posted by khonfused View Post

Yes, that's its name over here in Europe. By the way, MSRP in Germany is 2999.- .


Wow !

It's 2499 in France ;-)

Mine is on the way...

Richard.
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post #113 of 211 Old 03-11-2009, 06:42 AM
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The distance calculator on the Opoma website doesn't seem to factor in the lenshift at all, only attributing the leeways to the use of zoom This is very frustrating, as lenshift is a real plus point feature that the calculator makes very difficult to gauge:

http://www.optomausa.com/distancecalculator.asp
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post #114 of 211 Old 03-17-2009, 12:17 PM
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Mark, how do you feel the HD8200 would compare to the Benq W20000 with the 0.95" DLP DarkChip3?
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post #115 of 211 Old 03-18-2009, 08:21 PM
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Quote:


After living with the 8200 for awhile and comparing it head to head with an RS1 and RS20, it's my belief that it's the ANSI contrast that gives DLP the "pop" and "wow" factor that people use when discussing DLP. In dark scenes however, the situation was reversed and LCOS machines can (depending on the scene) have more depth and "Pop" due to their higher on/off contrast. Also not in every scene, but usually in dark scenes with small amounts of bright content. The end of the second Harry Potter movie is a good example of the sorts of scenes that look stunning on an RS20.

Objectivity makes for such an informative review, and for such a refreshing read. thanks for giving us such a worth-while look at how these machines perform.

-dave

1080p and lossless audio. EVERY BD should have them both.
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post #116 of 211 Old 03-18-2009, 09:13 PM - Thread Starter
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Mark, how do you feel the HD8200 would compare to the Benq W20000 with the 0.95" DLP DarkChip3?

Excellent question. I had wanted to include a head-to-head comparison from a .95" DC4 (Marantz 11S2) but it didn't work out in time for this review. I think the DC4 will be a little sharper although I think the .65" chip resolves detail very well. If you're looking at the screen from 6" away and carefully examining individual pixels I think the pixels in the DC4 will be better defined. From a normal viewing distance, I think they would both be about equal. As far as 0.95" DC3 vs 0.65" DC3, I think that there are subtle differences as far as contrast goes. I believe TzungILin mentioned in the other 8200 thread that they saw some subtle differences between the chips.
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post #117 of 211 Old 03-19-2009, 12:47 AM
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"thanks for giving us such a worth-while look at how these machines perform."

I've got to ask - why the hyphen?

Noah
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post #118 of 211 Old 03-19-2009, 05:15 AM
 
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I've got to ask - why the hyphen?

That is funny-whether intensional or not.
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post #119 of 211 Old 03-19-2009, 01:52 PM
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That is funny-whether intensional or not.

Yes and no - I didn't realize it until after I wrote it.

Incorrect hyphenation is a pet peeve of mine; it's become rampant.

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post #120 of 211 Old 03-19-2009, 02:53 PM
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Quote:
Originally Posted by noah katz View Post

That is funny-whether intensional or not.

Yes and no - I didn't realize it until after I wrote it.

Incorrect hyphenation is a pet peeve of mine; it's become rampant.

Since we are getting all grammatical and all, I thought that I'd point out that "intension" and "intention" are different terms with very different meanings. "Worth-while" was certainly intensional, but it may or may not have been intentional.

"Intension" refers to a term's descriptive content or connotation. It is often used in contrast to the linguistic function of extension, denotation, or reference.

For example, "unicorn" has intension because we know what it means and what it describes. It has no extension, because no such thing, so far as we know, exists.

On the other hand, "intention" refers to someone's committing an act on purpose, rather than accidentally, which I gather was the meaning that was, well, intended.

Here endeth the lesson.

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