CurtPalme.com Home Theater Forum

[stridsvognen]

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[CasetheCorvetteman]

Use a PC

[Francisco]

I can do direct source to Eisemann internal HDMI:

- Dune HD max (it's a BD player)
- PS3
- HTPC with nvidia 9400 graphics card

Unfortunate i don't own a Lumagen Radiance XS or XE. I've been offered a Lumagen Radiance XE+ but I don't know if it's worth the money $$

[CasetheCorvetteman]

The PC will likely best have a chance to show the difference.

[Francisco]

Did some testing with lower resolutions to see were the roll off is.
Chain is as mentioned in my earlier post, will also try with direct source attached to it. Will also try a modified moome RGB2 board soon as well.
Also these tests are with Eisemann mods and modified neck board.

To be honest on this test pattern SMPTE I even see vertical lines darker then horizontal and this is 720p only ! (no peaking)
In actual picture or movie all looks very good, sharpness is sublime, no picture noise anymore tubes fosfor is also very fine, also a lot of depth in the picture. Im curious about a side by side test with a modded marquee to see what "this lack of BW" will show in actual picture.

some photo's 720p@60hz

[stridsvognen]

[stridsvognen]

Also try run the Croma Multiburst at 1080P, it do more or less the same as the Croma zone plate, its just much easier to see whats going on.

It tells you how well you convert color space, and how well you resolve the colors.

It looks like this, and can be found on the Spears & Munsil Blu Ray.

[wwm]

HDMI input panel I also use Greg transformation.

[jbmeyer13]

[CasetheCorvetteman]

Justin, the astig on them can be electrically adjusted for every input i think, id have to have another look.

[Francisco]

I don't know if you can change elec. astig on every source specific. I do know that Barco remembers the memory block that comes closest to the new resolution. Same as copy block function. Most of the time elec. astig is spot on, on the new resolution.

@strids here are some pictures of 720p@50hz, I can keep going lower but it doesn't change it still behaves the same.

Al taken with Iphone5 so don't judge on noise and grain.
720p@50hz
Green




I didn't do convergence so this pictures is actually useless


1080p@60hz

[stridsvognen]

Is the croma multiburst also taken running 720P ?

You need to ask Greg if he cant get the bandwidth up to at least 75-100Mhz

Then you might benefit from using a bit of peaking.

I doubt that the bandwidth limitation running 720P 50Hz is in the projector, ill guess that the HDMI input has a problem.

Do you have a video processor you can run RGBHV out of, one who have a confirmed 165Mhz analog bandwidth, then you might try that, to find out where the biggest limitation is.

[Spanky Ham]

Francisco,
I wouldn't worry about doing all three colors at the same time. It really is a waste of time. Also, if you are testing bandwidth with a one/one pattern, then the pattern should be in the upper left hand corner.

[redfox001]

In my other thread about the new CineMax I posted some pictures from my displayport to VGA cable with 1,5 meter VGA breakout on port 4 with combined sync.

I found that the sharpness was much improved compared to the Moome v3 internal on port 3.

So I must say I agree with Case who compared a Moome v3 external with a VGA solution that the VGA solutions can be better.

1080p@60

[stridsvognen]

Ill guess the Moome ext. V3 is close in performance to the SONY V3 card, and if so it has less bandwidth than whetever else you can find out there.

Lets hope moome gets this fixed soon.

Hope that everyone who have this experience with the cards will send moome some feedback, so he know where to focus.

[stridsvognen]

[Francisco]

@strids, yess multiburst was also taken in 720p. I found that limitations on BW are not entirely within the Barco as Redfox and Case also proved. I have done some testing with different custom made HDMI input boards and found that 1:1 attenuation is far better, not as good as the Marquee but certainly comparable with Sony G90 judged and compared by our Iphone pictures.
This was without the Eisemann modifications, so original 800mhz video chain of barco. I'm talking to Greg to see if we can combine things, best input board with eisemann's modifications on video chain.

What I clearly can see is when I compare original boards with greg's that sharpness and picture noise are far less than with the modified boards. But I think the HD fury is not holding the max BW, and limiting the video chain too much.

[stridsvognen]

I think its important to have plenty of bandwidth headroom in the HDMI to analog converter, so what limitations you have only comes from the CRT machine.

As you know i had some problems with the moome card for the G90, but i think that if you can find one of the older V2 ext moome cards with the right filtering, i guess it will kick anything else in the ass.

I dont know how those who make converters test, but it seems that in many cases its just tested that there is a picture on the analog side, not much attention to the actual quality of the analog signal.

From what pictures i have seen from your 909 and others, and my experience with the G90 im not sure they have much difference in bandwidth performance, i dont see any peaking in your pictures, cant say how much peaking there is in the 909 video chain, but i find it important to keep the peaking at a point where it dont show visible overshoot. I cant make that happen on a standard G90.

Im exited to see how far you can tweak this 909. maybe you can also add a bit info about what kind of money it takes to get there.

[redfox001]

Just green 1080p@60 because Case asked.

[stridsvognen]

I see you run 138Mhz, thats worth to mention, as most will expect 148Mhz or more.

Try do as Francisco did, run the HD basic 720P SMPTE pattern and see if you can resolve that.