CurtPalme.com Home Theater Forum

[ElTopo]

I sold mine and i use the EXT V3.

[CasetheCorvetteman]

[Francisco]

Hi Case, this threat? https://www.curtpalme.com/forum_archived/viewtopic.php@t=34512.html

Here your 1:1 hasn't got the same level H vs V.

[stridsvognen]

Lets hope Greg will post a shot where he shows what the mods can do with perfect tubes, setup so he can aprove all the chain.

190Mhz will for sure make a perfect 1:1 1080P 60hz, even 72hz should be pretty damn nice.

[jbmeyer13]

[stridsvognen]

[CasetheCorvetteman]

[Nashou66]

1:1 to me means nothing about bandwidth even though it does. Confused? lol

Here is why. I have noticed on My blend that is not even close to using a high Pixel clock
and with the adjustable peaking Vims or with Vims that do not have the adjustable peaking. The Circuit has to be "tuned" for the resolution you are using.
I noticed I have gotten perfect 1:1 with the adjustable peaking . But, if I lowered the pixel clock the 1:1 should, according to many here, show a perfect and even in color and brightness 1:1 since the lower pixel clock falls well below the max.
Well it does not look perfect as the higher resolution before. Adjusting the pixel clock will determine the outcome
of each video path circuit independently. So to really get a good and even shade, brightness, or matching intensity or what ever you choose to call it you need to work on the Video path components through the projector so that the 1:1 will look even in intensity for the vertical and horizontal lines.

Also, and I can not stress this enough. Set up of focus has as much to do with this as does the BW of the video chain. If you can not get equal MTF between the two sets of lines( H and V) they will never match in intensity. MTF( Modular transfer Function) is as and if not more important as bandwidth and they are inseparable in CRT PJ's. You can have all the bandwidth in the world but if the optical and focus system can not get that BW to the screen your efforts on improving BW are wasted.

So CPC magnets, Zone Astig, Electronic focus system and Optical Focus system has to be as good or better for the 1:1 to look Even.

Kurt's picture shows that he has achieved this as does Mikes. They both have increased BW video chains but also have been able to set up the PJ's to take advantage of that increased BW and keep an even intensity between the two line blocks in the 1:1 pattern. Add some flare to the dots using a CPC magnet or through the electrical Astig and you will loose the perfect 1:1 even though the BW is there.

Nashou

PS: This is from my own observations messing around with Different Blend resolutions and the peaking circuit and with out the peaking circuit.

[gjaky]

[stridsvognen]

[CasetheCorvetteman]

Ill see if i can find those 1-1 images i posted with the RGB where it was much better.

[CasetheCorvetteman]

This is with the MOOME V3 external:



This is RGB straight from the PC, exactly the same 1920x1080p @60Hz

[CasetheCorvetteman]

Colour is off in the second pic cause i had not calibrated that after redoing setup of both inputs which is why the colour temps vary as they do, but it can clearly be seen how much better my 5x RG6 coax leads are over the MOOME V3, both are aboth the same sharpness, and i believe i did that prior to installing the new screen, which has improved sharpness by a huge amount.

Pics taken with an iPhone 4S.

[Nashou66]

Kurt take a pic of 1:1 at 1080p@60. I want to see if the color shifts in the blocks compared to your 72hz shots.

Nashou

[VideoGrabber]

Posted: Mon Apr 14, 2014 7:47 pm

[VideoGrabber]

[stridsvognen]

[Nashou66]

You don't have to buy a Barco, but do you have frankenyokes?

That is all you'll need and then your done !

Nashou

[stridsvognen]

[jbmeyer13]