Optoma eh501 - DC 3 - 1080p - 16:9 - Biz Crossover to 3D Projector - 1080p 3D @ 60hz via DVI-D? - AVS Forum
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post #1 of 50 Old 10-19-2013, 06:59 AM - Thread Starter
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The Optoma eh501 is an interesting projector so I thought I'd post a thread. The Street Price is around $1700.
It is also one of the brightest projectors under $2000 in existence, even though it was released as the ProLine / Presentation projector, this projector shares many crossover home theater features.

This has not yet been verified by a user, but the user manual claims it can do 720p@120hz in 3D, as well as 1920x1200 @ 60 with reduced blanking (not sure if they mean 3d here). It also supports Triple Flash 144hz DLP Link and separately IR, so theoretically you can use IR glasses in 60hz mode without having to experience the DLP flash contrast loss in 3D from an HTPC. It does have some Vertical Lens Shift for some added placement flexibility (though not center-based like the w7000).

The projector is also rated at 5000 lumens, which should mean 2000+ lumens in 3D (now that is bright). White segment or no white segment, this is a projector that might have some interest for gamers and 3D connoisseurs, as well as for 2D users that have very large low gain screens. Biggest concerns would be potential 3x color wheel or 4x color wheel (unknown amounts of RBE). It appears to have a full CMS as well as be loaded with options.

Here are the specs:

Display Technology Single 0.65" DC3 DMD DLP® Technology by Texas Instruments™
Native Resolution HD (1920 x 1080)
Maximum Resolution 1080p (1920 x 1080)
Brightness 5000 lumens
Contrast Ratio 15,000:1 (full on/full off)
Displayable Colors 1.07 Billion
Lamp Life and Type 4000/3000/2500 Hours (ECO+/ECO/normal) 280W
Projection Method Front, rear, ceiling mount, table top
Keystone Correction Auto Keystone, ±40° Vertical
Uniformity >85%
Aspect Ratio 16:9 Native and 4:3 compatible
Throw Ratio 1.37–2.05
Projection Distance 3.2ʹ–32.8ʹ (1.0–10 m)
Image Size (Diagonal) 23.4ʺ–300ʺ (0.6–7.62 m)
Projection Lens F=2.42–2.98, f=20.77–31.13 mm, 1.5x manual zoom and focus
Lens Shift Vertical 115% ~ 134%
Audio Two 15-Watt speakers
Noise Level 27dB
Remote Control IR remote mouse with laser
Operating Temperature 41–113°F (5–45°C), 85% max humidity
Power Supply AC input 100–240V, 50–60Hz, auto-switching
Power Consumption Max 355W (Normal), Min 279W (Eco+), <0.5W (standby-ECO)
Computer Compatibility HD, UXGA, WXGA, SXGA+, SXGA, XGA, SVGA, VGA resized, VESA, PC and Macintosh compatible
Video Input Compatibility NTSC, PAL, SECAM, SDTV (480i), EDTV (480p), HDTV (720p, 1080i/p)
3D Compatibility Top and bottom, side by side, frame packing, HQFS (See user manual for details). 3D glasses are needed and sold separately.
Vertical Scan Rate 24–85Hz, 120Hz, 144Hz
Horizontal Scan Rate 15.3–91.1KHz
User Controls Complete on-screen menu, adjustments in 27 languages
I/O Connectors HDMI v1.4, DVI-D, two VGA-in, VGA-out, S-video, composite video, two stereo audio-in, stereo RCA audio in, mic-in, stereo audio-out, RJ45, RS-232C, Two USB-A, Two USB-B, 12V trigger
Loop Through Monitor: D-Sub 15 pin VGA output
Audio-out: Stereo 3.5 mm mini-jack (functional in both normal and standby modes)
Security Kensington® Lock Port, security bar and keypad lock
Weight 9.9 lb (4.5 kg)
Dimensions (W x H x D) 15.2" x 6" x 11" (386 x 152 x 279 mm)
Warranty 3-Year Optoma Express Service, 1-Year on Lamp
What's in the Box AC power cord, VGA to VGA cable, remote control, batteries for remote, multilingual CD-ROM user’s manual, quick start card and warranty card
Optional Accessories HDMI cable, ceiling mount, VGA to component cable, RS-232 cable and Optoma screens
Accessory Part Numbers Lamp: BL-FU310A
Mount: BM-5001U
Remote: BR-5046L
SB adapter: BI-EXTBGN
DLP® Link™ 3D glasses: BG-ZD301
UPC UPC 796435 41 803 8



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post #2 of 50 Old 10-19-2013, 07:18 AM - Thread Starter
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Also just to clarify, the manual says it can do up to 1920x1200 3D @ 60hz through the DVI-D input which is for the 16:10 version of this projector, but that in this mode it supports reduced blanking. Does that mean it can also do 1920x1080 3D @ 60hz, but not verified.

Another question would be is does the reduced blanking in 60hz 1920x1200 3D carry over to the 1920x1080 version of this projector, and if so does this negate the advantage of this mode through the DVI-D Input, that I do not know.

Maybe someone will purchase one of these units and let us know.

BTW, it also comes with a 5-year warranty (2 extra free) for a limited time. That is a long warranty.



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post #3 of 50 Old 10-19-2013, 07:58 AM
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5000 lumens holy cow.

Does it have a white segment?
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post #4 of 50 Old 10-19-2013, 08:05 AM - Thread Starter
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Yes, but so does the Viewsonic pjd7820hd and Optoma hd25-LV.

I think the projectors with white segments have gotten a lot better than in the old days, they are using better color tables and perhaps some even have different color wheels than before (smaller white segments so to speak). Bill @ PJC said that the Optoma hd25-lv (with the white segment) had good enough color to be comparable to the regular Optoma hd25, even with both after a calibration. That is much better than the old days when it completely ruined the color.

That said, I wouldn't expect perfect color, but it should be more than good enough. I wouldn't run out and buy this PJ if you are RBE sensitive though, might be a big risk in that sense.



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post #5 of 50 Old 10-19-2013, 04:30 PM
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Would be perfect for me if this was LED and short-throw

Multi-Projector Edge-Blending & Geometry correction for games and simulations.

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post #6 of 50 Old 10-20-2013, 05:00 AM
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You make me dream. What does the Manual exactly says about the 3d @ 1080p 60hz?

Does this projector have a vesa port for compatibility with the optoma RF emittors and glasses?

Ah yeah: the big Problem is for films viewing; no pure Motion (Frame Interpolation...)
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post #7 of 50 Old 10-20-2013, 05:23 AM
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OK, I've checked in the Manual and it's clearly written that this projector is NOT compatible through the DVI-D with a Signal @ 1080p 120hz for 2D. And it's also written that for 3d, the maximal compatibility is for 720p 3d @ 60hz. So: false alert.

Nothing new...under the sun!
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post #8 of 50 Old 10-20-2013, 05:23 AM
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Compatibility Modes
Computer Compatibility
(*)1920 x 1200 @60hz only support reduced blanking
(**) 3D timing for True 3D projector
Signal Resolution Refresh Rate(Hz) Notes for Mac
VGA 640 X 480 60/67/72/85 Mac 60/72/85
SVGA 800 X 600 60(**)/72/85/120(**) Mac 60/72/85
XGA 1024 X768 60(**)/70/75/85/
120(**)
Mac 60/70/75/85
HDTV(720P) 1280 X 720 50/60(**)/120(**) Mac 60
WXGA 1280 X768 60/75/85 Mac 60/75/85
1280 X800 60(**)/120(**) Mac 60
1366 X 768 60 Mac 60
WXGA+ 1440 X 900 60 Mac 60
SXGA 1280 X1024 60 Mac 60/75
SXGA+ 1400 X1050 60
UXGA 1600 X 1200 60
HDTV(1080p) 1920 X1080 60 Mac 60
WUXGA 1920 X1200(*) 60 Mac 60
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post #9 of 50 Old 10-20-2013, 07:57 AM - Thread Starter
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Hmm...

It shows 720p @ 120hz in 3D mode by denoting it with ** saying TRUE 3D TIMING.

(**) 3D timing for True 3D projector

HDTV(720P) 1280 X 720 50/60(**)/120(**)

It also says 1920x1200 @ 60hz with reduced blanking (are they talking about non-3d blanking)?

So 1920x1080 @ 60hz 3D / 120hz 2D only needs a DVI-D input, correct?

This projector does have DVI-D, so why would it be limited in displaying this through a DVI-D when it denotes 3D in 720p @ 120hz and 1920x1200 with reduced blanking?

I am not sure we really know just yet until someone tests it, but keep in mind there are 3 variants of this projector - a 16:10 (1920x1200), a 16:9 (1920x1080), and a 720p (1280x720). So that is only confusing it more because the manual combined the compatibility table for all three projectors, which only adds to the confusion.



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post #10 of 50 Old 10-20-2013, 08:31 AM - Thread Starter
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I did some more research to investigate DVI dual link vs. single link, and the people that named the DVI spec are absolute ignoramuses.

There is what is called a DVI-D Dual Link connection (just extra pins), and a DVI-D Single Link Connection. The D doesn't actually represent dual link apparently (can you make it anymore confusing). Here is the real kicker, the problem is, both DVI-D Single Link and Dual Link appear to MAYBE have the same # of female pin holes at the input port, even though the single link cable has fewer MALE pins it doesn't mean the input has to have fewer female slots, so it just means the input doesn't make use of all those pins.

That said, the Optoma does appear at a glance if I discount the above information and assume any Single Link DVI-D female input would have the middle pins keyed, then the Optoma does in fact have DUAL DVI-D (not single), because no pins are keyed, but given the above info I cannot determine this.

The only thing I know is that it claims to take the input of 720p 3D @ 120hz and shows 1920x1200 with reducing blanking (but not sure if they are referring to 3D in 1920 mode).

Basically, I think the chance of this doing 1920x1080 @ 60hz 3D is probably suspect at best, but I am still not sure given all the above info.



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post #11 of 50 Old 10-20-2013, 02:00 PM
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It's not juste the connector that you Need but a chip inside the projector that can handle 330Mhz. But every time they choose to implement a cheap chip that cannot handle that Speed. For exemple, the hdmi 1.4b (and not a) should already be able to do the trick but because nobody was interested in it and because it costs a Little bit more, it was never used..


I would still be interested in a home Cinema countepart Version of this projector WITH pure Motion on board for about the same Price. It would be already an improvement over the hd33 is use for 3D.

- Dc3 @ 144hz (instead of DC2 with 120hz)
- More lumens
- Vertical Lens-shift
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post #12 of 50 Old 10-20-2013, 05:49 PM
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I've been looking for info on this thing for a while, I think for what you get, its a great deal if you need the lumens for 3D. Sure its not going to have perfect colors like the expensive projectors, but everyone that comes to watch a movie at my place, ooos and wows over brightness, not color accuracy, so I don't think it will be a huge deal as long as the color wheel doesn't produce a bunch of rainbows. Doesn't seem to be any in stock yet, but when they do come in, I'm buying one
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post #13 of 50 Old 10-20-2013, 11:06 PM - Thread Starter
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Quote:
Originally Posted by d james View Post

I've been looking for info on this thing for a while, I think for what you get, its a great deal if you need the lumens for 3D. Sure its not going to have perfect colors like the expensive projectors, but everyone that comes to watch a movie at my place, ooos and wows over brightness, not color accuracy, so I don't think it will be a huge deal as long as the color wheel doesn't produce a bunch of rainbows. Doesn't seem to be any in stock yet, but when they do come in, I'm buying one

Visual Apex will have them in stock in a week or two according to their web page. Please do let us know the ins and outs of this projector once you receive it.
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Originally Posted by Soulnight View Post

It's not juste the connector that you Need but a chip inside the projector that can handle 330Mhz. But every time they choose to implement a cheap chip that cannot handle that Speed. For exemple, the hdmi 1.4b (and not a) should already be able to do the trick but because nobody was interested in it and because it costs a Little bit more, it was never used..

I would still be interested in a home Cinema countepart Version of this projector WITH pure Motion on board for about the same Price. It would be already an improvement over the hd33 is use for 3D.

- Dc3 @ 144hz (instead of DC2 with 120hz)
- More lumens
- Vertical Lens-shift

We know HDMI cannot do it, that was never in question. $300 3D monitors can do it through their DVI-D inputs, so I'm not aware of the requirement of a special or expensive chip. The processing that needs to happen before the DLP chip outputs the image is essentially the same general process as a computer monitor, I mean this is just digital data we are dealing with before that point.

For DVI-D, you don't need any special chip that I am aware of.
If a projector can output 120hz even if only in a 5:5 pulldown (even if the HDMI input is 60hz max), and a standard Dual DVI-D board from Taiwan/Thailand/China can take the higher inputs and pass them through the data pipe (which they can), and the fact that these projectors have access to the pulldown modes via firmware (not just hardware), then they should be able to assemble the correct output signal in the firmware from the DVI-D to the projector. We know FI implementations are proprietary to each MFR, so obviously they have access to insert frames in the firmware and output it as 120hz, and FI already passes interpolated frames instead of inserting repeat frames, so the HW is already there. The only issue is getting the DVI-D signal to the firmware through the data-pipe.

I also find it very strange they listed 720p @ 120hz 3D capable and this thing has a Dual DVI-D input, that is a weird error in the manual, but I agree it is probably an error. I don't think anyone was expecting this to work in higher hz modes through the HDMI, I am simply speaking of the slim chance the DVI-D port takes the higher inputs.



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post #14 of 50 Old 10-22-2013, 09:44 PM
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I will certainly let you guys know how I like it. When I talked with a rep from the store, I was told one guy bought two of them for his sports bar to show games with lots of ambient light, and that he was very happy with the performance of the projector. Looking at the manual, it does mention there is a movie preset mode for home theaters as well as a sRGB mode: standardized accurate color, which sounds like it might generate at least a half decent look. It even has a gamma setting for film that is for home theater, so It sounds like they gave a little thought into home projection to give us something decent. It also appears that the user control interface is adjustable and not greyed out like on some other business-like projectors. It's nice to see something out there that can play blu ray 3d movies without sacrificing brightness. This thing could be underrated by a thousand lumens and still have plenty to spare. I'm surprised more people aren't talking about it.
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post #15 of 50 Old 10-23-2013, 01:31 AM
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I don't understand the interest for this projector. It cannot play 3D movies smoothly as it as not "pure motion" for frame interpolation. I am a big fan of 3D but without frame interpolation, it's a no go for 3d film viewing: I did try with the optoma hd25-lv but...no way, it's way too blurry and shaky!

And I know very well that a DUAL DVI-D cable is able to handle 1080p 3D @60 since I have a monitor for 3d vision as well. Still, I'm pretty sure you still need a chip that can work @ 330Mhz.
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post #16 of 50 Old 10-23-2013, 05:35 AM
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Quote:
Originally Posted by Soulnight View Post

I don't understand the interest for this projector. It cannot play 3D movies smoothly as it as not "pure motion" for frame interpolation. I am a big fan of 3D but without frame interpolation, it's a no go for 3d film viewing: I did try with the optoma hd25-lv but...no way, it's way too blurry and shaky!

And I know very well that a DUAL DVI-D cable is able to handle 1080p 3D @60 since I have a monitor for 3d vision as well. Still, I'm pretty sure you still need a chip that can work @ 330Mhz.

Add to that: no VESA port for 3D emitters.
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post #17 of 50 Old 10-23-2013, 11:56 AM
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Yes I can see both your points, having frame interpolation would be very helpful, but from what I understand the Epson 5020 didn't have that for 3d, and the reviews put it at one of the best 3d projectors. I haven't seen any 3d projectors firsthand, I've only got my passive 3d tv, so I can't say for sure if the 3d will be choppy and disappointing to my eyes. I would prefer to have FI, but I really need the brightness over anything else because of my large screen. I really wanted the Epson 5030, but it won't be bright enough with 3d for my setup. I haven't found the 3d to be objectionable at the movie theater, but once again, that's passive, so hopefully this setup with active shutter will be good. I'm more concerned with the color wheel specs, and since optoma doesn't publish them anymore, I feel rainbows could be a possibility.

I think it is disappointing there is no vesa port, but at least it has 3d through the HDMI, which is what I was looking for, seems many of these bright projectors of this type do not.

I look at this pj not representing the best movie experience, but from a price/lumen/feature pj, it should serve its purpose well, at least that is what I hope. It would be nice to see a professional review on this thing before picking it up, but I don't except that to happen anytime soon.
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post #18 of 50 Old 10-24-2013, 02:25 AM - Thread Starter
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Quote:
Originally Posted by Soulnight View Post


And I know very well that a DUAL DVI-D cable is able to handle 1080p 3D @60 since I have a monitor for 3d vision as well. Still, I'm pretty sure you still need a chip that can work @ 330Mhz.

They cannot make a Dual DVI-D input without it having 330mhz chips on the board, that is what makes it DUAL. Otherwise it would be a Single DVI-D port, because 165 max Mhz is what a Single DVI-D port is. I am not saying Optoma has a Dual DVI-D board (it may in fact be a single), but I'm just saying it might. The pixel clock chip on the DVI-D board is what receives the signal, not a chip on the projector, after that point a projector only needs to have a data-pipe supporting up to 120hz on both sides of the VP (incoming from the port to the VP and firmware). We already know the outgoing data-pipe after the VP can do 120-144hz and we know the firmware can address those bits, because if it could not then the firmware could not handle a 120hz output.

The superb brightness, lens shift, 144hz Triple FLash, and DC 3 is why. Plus I'm still not 100% it cannot do some 3D modes in Dual DVI-D inputs that others cannot.
144hz Triple Flash is better than 120hz, it is not as smooth as FI but most people are not complaining in the Benq and Optoma threads.

I still don't understand why they said 1920x1200@60hz with Reduced Blanking (unless they are talking about 2D blanking, but then why denote that right above 3D and not say 2D). Also why did they mark 120hz 720p as a true timing 3D mode. I have never seen a biz 3D projector with a Dual DVI-D port, so I am not sure we should assume what its capabilities are until someone has tested it. Yes it would be a surprise if it can do any of the higher modes, but the point of this forum is to find out for sure, not to assume. Like I said before, those are some very strange errors in the manual, and if they end up not being errors, it means this projector can in fact do faster modes via Dual DVI.



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post #19 of 50 Old 10-24-2013, 12:06 PM
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Originally Posted by coderguy View Post

They cannot make a Dual DVI-D input without it having 330mhz chips on the board, that is what makes it DUAL. Otherwise it would be a Single DVI-D port, because 165 max Mhz is what a Single DVI-D port is. I am not saying Optoma has a Dual DVI-D board (it may in fact be a single), but I'm just saying it might. The pixel clock chip on the DVI-D board is what receives the signal, not a chip on the projector, after that point a projector only needs to have a data-pipe supporting up to 120hz on both sides of the VP (incoming from the port to the VP and firmware). We already know the outgoing data-pipe after the VP can do 120-144hz and we know the firmware can address those bits, because if it could not then the firmware could not handle a 120hz output.

The superb brightness, lens shift, 144hz Triple FLash, and DC 3 is why. Plus I'm still not 100% it cannot do some 3D modes in Dual DVI-D inputs that others cannot.
144hz Triple Flash is better than 120hz, it is not as smooth as FI but most people are not complaining in the Benq and Optoma threads.

I still don't understand why they said 1920x1200@60hz with Reduced Blanking (unless they are talking about 2D blanking, but then why denote that right above 3D and not say 2D). Also why did they mark 120hz 720p as a true timing 3D mode. I have never seen a biz 3D projector with a Dual DVI-D port, so I am not sure we should assume what its capabilities are until someone has tested it. Yes it would be a surprise if it can do any of the higher modes, but the point of this forum is to find out for sure, not to assume. Like I said before, those are some very strange errors in the manual, and if they end up not being errors, it means this projector can in fact do faster modes via Dual DVI.
Are the people at Optoma tech support any good at answering these kinds of questions, my guess is they would have no idea how to answer them, but it might be worth a try.

I also noticed in the manual it says the 3d can use IR glasses, and there is a menu option for turning IR on and off, but I have no idea what glasses could be used as I didn't see any on the optoma website. If that option is available and not an error, then it could please some of those guys wanting RF by using one of those monster vision converters
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post #20 of 50 Old 10-24-2013, 12:30 PM - Thread Starter
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for both one projector or dual stacks

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post #21 of 50 Old 10-31-2013, 04:41 PM
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I ended up calling optoma tech to see if they could tell me the color wheel speed and segments. The representative said it should be a 2x 5 segment RGBYW. He said they haven't had any issues with people seeing rainbows on their projectors in a very long time. I'm not sure how this color wheel translates to this projector, I thought there were other considerations such as the refresh rate in regards to rainbows? The rep said he had heard from others that have seen the pj in action, said the picture was phenomenal. He also said because it was a proscene model, that it should perform very well as its held to a higher standard. There is also a free extra two year warranty until January, giving a total of five years, which is pretty exceptional. Its too bad no one still has them in stock, and a bunch of preorders already taking up some that will come in.
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post #22 of 50 Old 11-01-2013, 05:17 AM
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Quote:
Originally Posted by Soulnight View Post

I don't understand the interest for this projector. It cannot play 3D movies smoothly as it as not "pure motion" for frame interpolation. I am a big fan of 3D but without frame interpolation, it's a no go for 3d film viewing: I did try with the optoma hd25-lv but...no way, it's way too blurry and shaky!

And I know very well that a DUAL DVI-D cable is able to handle 1080p 3D @60 since I have a monitor for 3d vision as well. Still, I'm pretty sure you still need a chip that can work @ 330Mhz.

I just don't get it.

Frame interpolation and smooth don't belong in the same sentence. Don't you mean 1/2 smooth and 1/2 garbage when the processor is confused?
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post #23 of 50 Old 11-02-2013, 09:21 AM
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it also comes with a 5-year warranty (2 extra free) for a limited time. That is a long warranty.pNEg
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post #24 of 50 Old 11-02-2013, 12:53 PM
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Subscribed. Once someone gets their hands on it I can't wait to hear the details
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post #25 of 50 Old 11-02-2013, 01:20 PM
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Quote:
Originally Posted by Soulnight View Post

I don't understand the interest for this projector. It cannot play 3D movies smoothly as it as not "pure motion" for frame interpolation. I am a big fan of 3D but without frame interpolation, it's a no go for 3d film viewing: I did try with the optoma hd25-lv but...no way, it's way too blurry and shaky!

And I know very well that a DUAL DVI-D cable is able to handle 1080p 3D @60 since I have a monitor for 3d vision as well. Still, I'm pretty sure you still need a chip that can work @ 330Mhz.


Strange I have a 25-LV and it doesn't seem "blurry" or "shaky", but it may depend on the source. Only checked out 3D from 2 sources, one FP 1080p24(slightly "shaky" AKA seemed like frames being dropped, but no one else watching seemed to notice) and one SBS 720p60 source(very smooth and not blurry even at 135" @ a 1.3 viewing distance). I have two other 3D sources I'm going to be testing within the next few days.

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post #26 of 50 Old 11-03-2013, 05:20 AM
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Originally Posted by Kreationz View Post


Strange I have a 25-LV and it doesn't seem "blurry" or "shaky", but it may depend on the source. Only checked out 3D from 2 sources, one FP 1080p24(slightly "shaky" AKA seemed like frames being dropped, but no one else watching seemed to notice) and one SBS 720p60 source(very smooth and not blurry even at 135" @ a 1.3 viewing distance). I have two other 3D sources I'm going to be testing within the next few days.

The Thing is: ignorance can be a good Thing. If you've never seen, a smooth 3D with Frame Interpolation activated, then you won't notice as much the shaky/blurry look of a 3D blu-ray @ 1080p24.

But if you've already seen the result of using Frame Interpolation on such a 3D blu-ray (24p 1080p), you can never come back because it's so much smoother, natural, and not blurry anymore with the fast movements that occur often in a film.

In a way, you already experienced it a Little with your source 720p60 where you noticed it was very smooth. You said it was not blury and I believe your Feeling but it's so much better with 1080p smile.gif

And the best viewing distance for 3D is the width of your Screen (1:1 Ratio).
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post #27 of 50 Old 11-03-2013, 06:07 AM
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Quote:
Originally Posted by Soulnight View Post


The Thing is: ignorance can be a good Thing. If you've never seen, a smooth 3D with Frame Interpolation activated, then you won't notice as much the shaky/blurry look of a 3D blu-ray @ 1080p24.

But if you've already seen the result of using Frame Interpolation on such a 3D blu-ray (24p 1080p), you can never come back because it's so much smoother, natural, and not blurry anymore with the fast movements that occur often in a film.

In a way, you already experienced it a Little with your source 720p60 where you noticed it was very smooth. You said it was not blury and I believe your Feeling but it's so much better with 1080p smile.gif

And the best viewing distance for 3D is the width of your Screen (1:1 Ratio).

Yep. First experience with 3D was in an actual IMAX watching the space documentary and then the reef one. Was awesome and everything else in every non-IMAX theater left me "wanting" for lack of a better term. In recent years, my local theater has upgraded their systems and the 3D there is better, but not quite IMAX levels(they need to up their brightness a touch still). My friends who actually work at that theater prefer my home system(and they saw it when it was slightly more jerky before I worked out my HTPC timing issues). :P

I should have qualified the "blurry" part of it. It was only slightly "blurry" when dealing with 720p due to scaling. I managed to get all the 3D modes running properly on my HTPC via HDMI last night(funny it allows custom timing over HDMI, but not over VGA... looks like I'm going to need PowerStrip for my setup). I was using a 1080p24 source, but this time I had a chance to view it as 1080p24 with proper timings. My pic quality went from "sweet"(comparable to the local cinema) to "wow"(AKA I can't believe how much my local cinema sucks...). I also used 720p60(But haven't played an actual 720p60 source and it was the frame interpolation which made it look a bit smoother), and 1080i60. With 1080i, I had minor tearing issues, but managed to customize my timings to eliminate them. It was both sharper than 720p(but not as "perfect as 1080p") and smoother than 1080p(but not by much once timings were fixed).

Also, the "best" viewing distance is subjective. 1:1 is not the "best" when you are sensitive to rainbows and using a DLP(more eye movement = more rainbows), both of which are my case.

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post #28 of 50 Old 12-01-2013, 06:44 PM
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As promised, I thought I'd post my review of this projector. It is extremely bright and actually throws a very exceptional picture. Compared to my Epson 6500ub, the blacks are obviously not quite as good, but it appears to my eyes to be sharper and every bit as nice looking as the Epson except those blacks, but the extra lumens surely makes up for that loss. However, I am seeing rainbows all over the place on the movie mode on dark scenes. Not just a few, but at every small scan my eyes make. When I put it on bright mode, its hard to spot them, maybe because its using the white portion of the color wheel, I'm not really sure. All I know is its pretty unusable because of the rainbows. I had called and talked twice with optoma tech support before ordering the pj, and both times I was told that people at optoma who have seen this thing in action have not reported any rainbows, and that they have not been a problem in years. In fact, they told me it was great for home theater, thus the reason it had the movie mode. I have not considered myself sensitive to them as I have had optoma projectors in the past and never seen them. what's worse is my girlfriend even saw them before I even told her about rainbows, so obviously it can't be that we are both in the small minority who see them. Unless the thing is just messed up, or there are some other settings I'm supposed to be changing to get rid of them, or is this just the way these pj's perform? I just can't figure how they can use this for large venues and sports bars, the eye scanning motion would get everybody sick and if they have the technology to rid projectors of this problem, why not do so. The advertising literature says its compatible for blu ray movies, video games and 3d.
If this is how its designed, its a real shame because the picture otherwise looks really good and is a great solution for 3d viewing with IR or DLP link
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post #29 of 50 Old 12-02-2013, 05:53 PM
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well another update, after playing around with different settings and other modes, I've been finding the rainbows tolerable where they are hard to notice. I still can't use the home theater movie mode, because it has too many rainbows, at least with dark scenes such as those from the 2nd Nolan batman movie. When watching daytime scenes everything is ok. I decided to sit down and watch some movie scenes with other modes and unless I'm scanning my eye back and fourth across the screen, its hard to spot them.

still disappointing for a projector that is touted with “ProScene represents the very best of Optoma’s engineering and technology,” said Jon Grodem, Optoma’s senior director of product and marketing. http://www.projectorcentral.com/news_story_1901.htm. I certainly wouldn't go around saying that when rainbows can be seen.

Anyway the picture is still much sharper and detailed on this pj than my Epson UB, and that's despite the Darbee being hooked up to the Epson. That along with its amazing brightness, is tempting me to keep it. As soon as I get some time, I will hook up a HDMI splitter and project both side by side and get some pics to show how it looks for those interested in the pj
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post #30 of 50 Old 12-03-2013, 03:52 PM
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Is there anyway you could hook up your computer to the projector and try connecting it with a DVI cable and running a game or something in 1080p 60hz 3D? I'm only interested in this as a 3D projector for 3D gaming but nobody seems to know if it will accept a 3D signal at 1080 60hz through DVI. I would really appreciate it. biggrin.gif
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