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Help with Blending 2 G-90's?

post #1 of 17
2/20/13 at 3:00pm
Thread Starter 
Does anyone know what is needed and how to "Blend 2 Sony G-90's ?
Most of the info I've found are older DVI or RGB setups. I would like HDMI, or someway to play Bluray, etc. at full resolution. Thanks in advance for your assistance - PK
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post #2 of 17
2/21/13 at 7:58am
hi, you'll need two Moome HDMI cards found here:

http://www.curtpalme.com/IFB-FULLHD.shtm

Then you'll need two Video Processors that blend. like the tv One C2-2250. I can help you get those if you want.

read through here

http://www.avsforum.com/t/986738/tvone-blending-info-general-q-a-or-just-how-to

There are also links over at Curt palme web site on blending.

http://www.curtpalme.com/forum/viewtopic.php?t=18406&sid=26e326a1718a08da5119578d9b36a63f

PC blending is more difficult from what has been done and I am not sure if there are any Blenders out there right now.

Also I would highly recommend a moome MUX-HD ( VF-01) to remove the HDCP issues of blu ray. Getting this unit you could eliminate the HDMI input cards i linked to above and use the RGBHV's from the Blend Video Processors.

teh Mux can be found here

http://www.moomecard.com/index.php?option=com_content&view=article&id=23&Itemid=22

And finaly if you still see the blend zone you'll two more Video processors that will have Full CMS, like the Lumagen radiance and or
the DVDO Duo.

So look at about 5-8 thousand on equipment.

Athanasios
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post #3 of 17
2/21/13 at 10:40am
Thread Starter 
Thanks for the reply and the links. I had asked some more questions in this post, but now I found you're previous posts which answered my questions
Thanks again for the help.
Sincerely - PK
Edited by pk442 - 2/21/13 at 11:49pm
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post #4 of 17
2/22/13 at 3:44am
Hello

You need to decide on a screen size of nine to thirteen foot width, and will you want 1.78 or 2.35 aspect. 2.35 will make it harder to display HDTV.

You will need 1.0 screen fabric, Stewart's Snowmatte fabric is excellent.

You will need a processor; a single box solution like Analog's STE100, or the now discontinued DiVentix 8022. Put a Moome MUX in front of that to switch HDMI sources.

For calibration you can consult with Craig Rounds out of Chicago, CIR Engineering.

Happy Blending!




Tim at E-Tech Phoenix
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post #5 of 17
2/22/13 at 6:25am
Thanks for the heads up Tim smile.gif

This would be a fun setup to calibrate and I'd be happy to do it whenever you are ready.

Kind regards,
craigr
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post #6 of 17
2/22/13 at 6:30am
Oh, I also do a lot of work with Lumagen and they even hired me to man their booth at CEDIA last show. If you needed two Radiance processors I could give you a discount on buying two. You really would only need two RadianceMINI units. They were designed exactly for this type of thing and have two HDMI inputs and one HDMI output each.

I would go:
SOURCES > MUXHD > BLENDER > MINI 1 > HDMI INPUT CARD 1
SOURCES > MUXHD > BLENDER > MINI 2 > HDMI INPUT CARD 2

craigr
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post #7 of 17
2/22/13 at 10:42am
Thread Starter 
Yes, this would be an exciting setup smile.gif I'm in Minneapolis, originally from Chicago, so not too far. In my old house I had my single G-90 on a 16x9 123" Stewart Studiotek 130 screen. The new Theater room is 20' wide, so that 9' wide 123" screen looks a bit narrow. I'm thinking of going with something in the neighborhood of 12' wide 2:35 screen. That way I would still have the 60" tall screen for 16x9 viewing that I'm use to. Is this too much for 2 G-90's in a blend? Is it really possible to make the blend area indistinguishable from the rest of the image? Can it be anamorphic in 2:35, ie so that we would still use the full 1080 vertical resolution? I've read that 817 is good for 72hz. I personally have found 24p to be less desireable then 60p, however, I have not seen 24p x 3 to 72p. Also, while I'm not a big fan of 3D, I do have some 3D blurays. Is it possible to do 3D with this setup?

Finally, I know this is a bad subject here, but would I be better off to ditch my beloved G-90 for a single Digital projector that could handle the larger screen? I know a lot of people love the JVC units, but while I think they look good, to my eyes in no way do they look as real/organic as the G-90.

Thanks to everyone for all the input and helpful ideas - PK
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post #8 of 17
2/23/13 at 7:27am
Hello

Lamp systems offer obscene light output but no depth, nothing film-like. Dueling G90s will provide exactly what you are looking for, if done right.

Search "Blendzilla" on your browser; anything that is not a gasoline-powered margarita system will be pairs of CRT projectors, lots of screen shots.

.
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post #9 of 17
2/23/13 at 10:41am
Thread Starter 
Quote:
Originally Posted by CIR-Engineering View Post

Oh, I also do a lot of work with Lumagen and they even hired me to man their booth at CEDIA last show. If you needed two Radiance processors I could give you a discount on buying two. You really would only need two RadianceMINI units. They were designed exactly for this type of thing and have two HDMI inputs and one HDMI output each.

I would go:
SOURCES > MUXHD > BLENDER > MINI 1 > HDMI INPUT CARD 1
SOURCES > MUXHD > BLENDER > MINI 2 > HDMI INPUT CARD 2

craigr

Okay, a few questions. Do you have a Y cable from the source to each of the MUXHD's?
The MUXHD are basically just input switchers, right?
What is the Blender?
Would this setup be capable of 3-D?
Will the Radiance Mini's scale 1080i to 1080P?

I just had the Green tube replaced in my projector along with the Dallas chip. Total hours on the projector are 3800 hours since new. Assuming I can find another G-90 in similar condition, how long would it take to get this together?
Thanks - PK
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post #10 of 17
2/23/13 at 1:34pm
Hello

With Edge Blending, the processor redraws the image in two "halves" with an overlap on each side that fades into the other side. Here you can see how white field on each side is rolled off in the middle on a twenty percent overlap.



So each projector draws about sixty percent of the screen width.







CRTs are natively 4:3 devices (same as 16:12), so when you are displaying 16:9 on one CRT you only use 75% of the available phosphor. With 2.35 you are only using 56%! This is not compatible with lighting up a screen twelve feet wide. Blending lets you use almost all the phosphor, for more than three times the punch of one projector.


.
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post #11 of 17
2/23/13 at 7:24pm
WOW tim i didn't realize you use a 20% overlap!! I bet that help with the blend zone not being seen. I might have to rethink my set up.

pk, the Moome mix is a splitter but also a switcher and also an HDCP problem solver lets say wink.gif You will not have any issues with
HDCP using the MUX. It has 4 inputs and 2 outputs. and you need to split( share) the signal to both processors. the Tv-ones Or the analog way will then
Zoom the image so that approximately 60% of the image either left or right will be on the screen and it then fades the image on the respective side
so that both will blend to a single 2.4 aspect image.

The radiance is needed to match the greyscale, gamma( most important) and the CMS of both G90's to match.

having said that, you'll need 2 G90's with matching tube wear, so in essence new tubes for both.

But Craig can work magic so maybe not . wink.gif

Athanasios
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post #12 of 17
2/23/13 at 10:48pm
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post #13 of 17
2/25/13 at 1:02pm
Thread Starter 
Thanks Everyone for all the helpful response. Unfortunately I have a busy schedule this week, and of course I have to consult my piggy bank and the Boss (wife) - fortunately, she's really a pretty good sport smile.gif
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post #14 of 17
2/27/13 at 11:41am
Quote:
Originally Posted by nashou66 View Post

So look at about 5-8 thousand on equipment.

Athanasios

Get two of those Panasonic LASER jobbies that have built-in soft-edge-blending and you are out less than that in hardware. At that level of outlay it stops being a fun project.
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post #15 of 17
2/27/13 at 1:11pm
Nah its still fun no matter the cost. wink.gif

Nashou
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post #16 of 17
4/1/13 at 6:02pm
Thread Starter 
While this setup is awesome for 2:35 viewing, I watch at least 50% 16x9. Yes I love and adore the full 2:35 movies. However, between video editing projects, home HD movies, Satellite, and 16x9 Bluerays/DVD's, at leat 50% of my viewing will be 16x9. Therefore, my question is this: Comparing the blended versus non blended projector setup; wouldn't the vertical tube wear (from 16x9 viewing) be more noticeable/distracting when watching 2.35 with the blended setup the traditional horizontal 2.35 wear seen when watching 16x9 on a single/stacked setup? In the 3800 hrs of combined viewing with my G90 over the last 10 years, I've never noticed any visible wear lines. Of course I wasn't looking for it, I was just enjoying the great G90 picture smile.gif
Thanks for any opinions - PK
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post #17 of 17
4/4/13 at 5:56am
Hello

Since blending allows use of nearly all of the tube face, you can run conservative contrast settings and still have big light output. Tube wear should not be a concern if you are starting with decent tubes.

.
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