Official Omega 3D passive projection system thread - Page 7 - AVS Forum | Home Theater Discussions And Reviews
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post #181 of 733 Old 02-21-2013, 06:28 AM - Thread Starter
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post #182 of 733 Old 02-22-2013, 10:11 AM
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Omega 3D kit ordered and bought another Optoma HD20!

Now the long wait begins (shipping to Norway usually takes time...)
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post #183 of 733 Old 02-23-2013, 09:18 AM - Thread Starter
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post #184 of 733 Old 02-25-2013, 09:21 AM
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I hope this doesn't seem too ridiculous to ask, and maybe not even an appropriate thread. But I am a little concerned with using two ViewSonic Pro8200's. See, I bought an Acer 5360, and planned on buying another one to use with the Omega system. But I was extremely unimpressed with the 5360's 2D performance. So I decided that I would go with two pro8200's for the Omega system. Well, my budget only allows me to buy one projector for now, and I have to wait to buy my next one. So I ordered one 8200 and paired it up with the Acer in the Omega system, but they didn't work together because the display the image a frame or two apart. I did freeze frame and slow motion (which was stunning!) but could not watch real-time video. Now my concern is will I have trouble with sync between two 8200's? Is it normal for two different brands to be off like that? Do they just make the 8200's a little slower, but all 8200's display the same?

The reason I am so concerned is because I took my Acer when I first got it and paired it up with my old 720p projector (Mits hc1600) and tried out the Omega 3D system. It looked pretty good, although it was hard to get the two drastically different projectors matched up well in brightness, contrast, shadow detail, which means that on some scenes my eyes had to fight each other. However, they sync perfectly.

focus
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post #185 of 733 Old 02-25-2013, 12:46 PM - Thread Starter
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post #186 of 733 Old 02-25-2013, 05:36 PM
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Motorman, where do you put 201 for sale? could you post the link? thanks.
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post #187 of 733 Old 02-25-2013, 08:29 PM - Thread Starter
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post #188 of 733 Old 02-26-2013, 01:07 PM
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I would ques the different input lag of the 2 different projectors might be the case if the pictures don´t sync. Well that´s just a hunch
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post #189 of 733 Old 02-26-2013, 02:50 PM
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I've seen, there already have been discussions using two Benq W1070 for the omega system (DLP, good brightness, lens shift). Has anyone experience with this configuration yet? I worry a little about the throw angle, as it's quite large (min, 40 degree full angle, corner-to-corner, http://www.projectorcentral.com/BenQ-W1070-projection-calculator-pro.htm). Will this be an issue with the filters (in terms of crosstalk in non-center image regions)?
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post #190 of 733 Old 02-26-2013, 05:18 PM - Thread Starter
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post #191 of 733 Old 02-27-2013, 12:27 AM
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Thanks a lot for the quick reply. Is an internal mounting of the filters a preferable choice to get best results? I mean getting the filters vertically in the light path won't be that hard (I performed a lot of successful device - surgerys).
In any filter configuration, does the back reflected light affect the lamp lifetime in some way? It seems that much light gets back into the projector and must be absorbed somewhere.

Another related thing: Concerning the demultiplexer: e.g. Geobox or Optoma 3D-XL. Is there any trouble with HDCP when watching newer blurays? Do these demuxer have an internal HDCP validation or is this signal forwarded to just one projector? I guess a PC-dual-VGA solution won't work with HDCP, even if the software player does support it!?
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post #192 of 733 Old 02-27-2013, 05:20 AM - Thread Starter
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post #193 of 733 Old 02-28-2013, 11:06 AM
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As far as I know stereoscopic player cannot playback BluRay discs directly, you have to remove the AACS protection first with a BluRay 3D ripping software, or a real-time decrypter software. Then the player can play individual files on the disc, but it doesn't work like an actual BluRay player.

Passive 3D, forever !
My Full-HD dual-projector passive polarised 3D setup. (really out of date ! I need to update it some day...)

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post #194 of 733 Old 03-01-2013, 06:03 AM - Thread Starter
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post #195 of 733 Old 03-01-2013, 08:23 AM - Thread Starter
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post #196 of 733 Old 03-01-2013, 11:26 AM - Thread Starter
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post #197 of 733 Old 03-12-2013, 08:44 AM
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Can these filters be used in combination with a projector that has a fisheye mounted in fromt of it?
I understand that it will not be possible to mount the filter in front of the fisheye lens because of the width angle.
But when we could manage to put the filter somewhere inside the projector, would that work?
Or does the fisheye introduce some problems?
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post #198 of 733 Old 03-12-2013, 10:46 AM
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Interesting stuff. It has been years since I played with stereoscopic player, but now I'm curious about it again.
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post #199 of 733 Old 03-12-2013, 05:24 PM - Thread Starter
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post #200 of 733 Old 03-17-2013, 08:19 AM
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Hey all, I've been using these for a while with 2 old barco light cannons, with the filter mounted before the lens. It has been a nice system for outdoor 3d showings (every weekend during the summer). Has anyone tried mounting them inside the lamp compartment. I think many projectors have enough room in there to place the omega lens directly after the lamp. Would the system still work with such a placement? Could the lens stand up to such heat? And finally, would the Omega lens somehow reflect tons of light back into the bulb and cause it to overheat and explode prematurely? Thanks for entertaining my crazy questions. Mounting before the lens is not, however, crazy, and is an awesome choice when possible.
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post #201 of 733 Old 03-17-2013, 06:01 PM - Thread Starter
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post #202 of 733 Old 03-17-2013, 06:06 PM
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It is not my intention to derail this thread, but a while ago there was a rumor of a passive conversion kit for Mitsubishi rear projection dlp's. Has anything come of this, or was it just rumor?
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post #203 of 733 Old 03-21-2013, 04:25 PM - Thread Starter
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post #204 of 733 Old 03-28-2013, 10:22 AM - Thread Starter
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post #205 of 733 Old 03-28-2013, 02:19 PM
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test.
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post #206 of 733 Old 03-28-2013, 02:28 PM
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test, sorry
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post #207 of 733 Old 03-28-2013, 03:36 PM
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Hi,
I plan to assemble the system on two Benq 1080 ST projectors . Can I fit your filters on their ultra-short optics? I plan view on screen ( painted wall) 7x3 metres from a distance of 4 metres.
Omegabob2 - this your account on ebay? I wrote you a question there. I need DLP filters, 5 pair glasses and user guide about alignment.
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post #208 of 733 Old 03-28-2013, 04:32 PM - Thread Starter
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post #209 of 733 Old 03-29-2013, 02:49 AM
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But I need 7 metres screen width. Benq1070 give 5 metres screen only ( from 6 metres distance). My room is 6x7 metres. What can I do?
I have not bought 1080 ST yet. At the moment I'm looking Benq LW61ST from a distance of 4 meters with shutter glasses...
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post #210 of 733 Old 03-29-2013, 08:26 AM - Thread Starter
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