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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

DreamColor LP2480zx and Scratch

bgervais said:
The Hdlink Pro does not support 10-bit output from the DVI output.

As for the comment that any DI work is done on LCD monitors - Any reputable post house that is doing their 'color critical' work on an LCD right now would not be very reputable (at least if it was for a film finish). The only currently available LCD monitor that I'd even consider for a DI would be the sony BVM series of LCD monitors. (10-bit panels, LED backlight, black frame insertion, high quality processing...) It's all downhill from there. Most DI suites that I've been in also usually use projectors, and a good Christie projector will be able to display at least 12-bits.
Click to expand...

Agreed on most points, but I would choose the Cine-Tal Cinemage over the Sony for many reasons, not least of which is both price & performance. eCinema Systems has some fantastic DI monitors available and in the works, too.

But I'm most excited about the Dreamcolor. BTW, Decklink HDExtreme does 10bit HDMI out, as well as dual stream SDI out. But I'm not sure if/how it would work w. Scratch. If it does, that seems like a pretty nice budget solution for 10-bit output to a variety of HDMI 1.3 capable displays.


cheers,

jt
 
10 bit lust

10 bit lust

Scratch and the DreamColor monitor seems like a match made in DI heaven. With the demise of grade 1 CRT monitors and the expense of offerings from CineTal and eCinema the attraction is great.

According to Lucas the output from the nVidia cards is 8 bit in DVI/HDMI and 10 bit from the HD-SDI daughtercard. There must be an AJA or BMD converter that would transcode the 10 bit signal from HD-SDI to DVI/HDMI to feed the DreamColor. Other than cost, what is the downside of just hanging a converter off the daughtercard?

Assuming you could get the converter and monitor for $4K it might be the hook-up.
 
Blair S. Paulsen said:
Scratch and the DreamColor monitor seems like a match made in DI heaven. With the demise of grade 1 CRT monitors and the expense of offerings from CineTal and eCinema the attraction is great.

According to Lucas the output from the nVidia cards is 8 bit in DVI/HDMI and 10 bit from the HD-SDI daughtercard. There must be an AJA or BMD converter that would transcode the 10 bit signal from HD-SDI to DVI/HDMI to feed the DreamColor. Other than cost, what is the downside of just hanging a converter off the daughtercard?

Assuming you could get the converter and monitor for $4K it might be the hook-up.
Click to expand...


I absolutely agree on all points. We just need a 10-bit HD-SDI to HDMI converter ..
.. or to get by with 8-bit output until Nvidia brings out a 10-bit DVI option on their Quadro's.
 
Nothing from BMD on the mini-converters...

For the non-Scratch users out there... are there any 10-bit HDMI cards out there? (e.g. BMD's Intensity card)
 
Guys could you please explain to me why those 2 bit are so important for DI,

I mean i completely understand the differences to grading 444 instead of 422 , uncompressed instead compressed etc...

1- But in monitoring those 2 extra bit does really could compromise the grading?

2- Does the dreamcolor show 10 bit?

3- are we sure that any kind of sdi--dvi converter don't introduce any other kind of problem?

PS: is it correct say that dvi is RGB 444 ?

I am really excited bout the dreamcolor too...but it seems that nobody yet did a comparison test closer to any other DI Monitor...

Thank you
 
8 Bit means it shows in the case of Log 2 to the 8th power, while 10 bit is 2 to the 10th power. This is the number of values from absolute white to absolute black. If you do the math its a fairly major difference.
 
OK, so the HP does 10bit, but what about black levels, color reprodution, refresh, viewing angle and so on? I think those might be more important than 10bits panel.

Also, what about the CRT grade1 Sony monitors (20"-24"), do they truly show 10bit colors?
 
macgregor said:
OK, so the HP does 10bit, but what about black levels, color reprodution, refresh, viewing angle and so on? I think those might be more important than 10bits panel.

Also, what about the CRT grade1 Sony monitors (20"-24"), do they truly show 10bit colors?
Click to expand...

Hi Macgregor,

The black levels, color reproduction and viewing angle are all very good (according to reports), which is why I am considering this as a serious DI option (obviously there are more suitable options out there, but for the money.)

As you say, without these things a monitor is simply unsuitable for any serious DI work.
 
Dream, or reality?

Dream, or reality?

IMHO within the context of grading RedOne footy where you start with RAW color at a nominal 12 linear bits, seeing 10 bits on the monitor vs 8 bits matters quite a bit (sic). If anyone on the forum has personal experience with the real world performance of the DreamColor monitor please share. In the meantime, I will look at the design parameters and the folks involved in the dev and hope they hit their target.

Advances in LCD monitor tech, notably LED instead of CCFL backlighting, make it theoretically possible to get far closer to the gold standard of a grade 1 CRT than in the past. You may still have to shell out the bucks for CineTal or eCinema to get CRTish blacks, but that is not financially viable for a lot of people.

When I worked in print, the top end "soft proofing" monitors were designed specifically for our vertical market, and they were much better than the general market offerings because the engineering envelope was so specific. If HP has done their job, then the DreamColor monitors just might offer an affordable option for the legions of people who will be grading RedOne footy without benefit of a full on post facility. Just sayin'
 
My dealer dropped off a Dreamcolor at one of the top labs in town today. They plugged it in to a deck via an HD-SDI -> HDMI converter box (don't know which one) and the response was a resounding "Holy S***". That bodes well...
 
Does anybody know if there is any chances to see the dreamcolor in New York?

Come guys post some comparison thoughts...

Thanks

G
 
Trevor Meier said:
My dealer dropped off a Dreamcolor at one of the top labs in town today. They plugged it in to a deck via an HD-SDI -> HDMI converter box (don't know which one) and the response was a resounding "Holy S***". That bodes well...
Click to expand...


Which converter ? full 10bit from Dual Link ?

s
 
I don't know which one it was, but AFAIK there are no 10-bit dual link converters out there yet, which means it was 8-bit only. And they were still very impressed.
 
MOTU V4HD looks promising for this. It can do HD SDI to HDMI with an internal 12bit processing and 10bit out.

I'm waiting on clarification to the question: will FX4600 SDI output > MOTU V4HD > HDMI maintain a full 10 bits per pixel all the way through the pipeline. Will report back when I get an answer.

JT
 
Guys as soon as someone (the new nvidia quadro?)will release a display port compatible card the signal will be 10 bit right?

G
 
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