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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 :)

Red Ray integrating Light Peak?

Peter Mosiman

Peter Mosiman

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So I have been on a Light Peak fact finding mission recently and it seems that this is the tech to invest in especially for something like Red Ray.

I was just curious if RED was planning on integrating Light Peak in its first release of the product or if it was going to wait until v2?

If you guys end up waiting, what would be the main purpose of doing so when LP can deliver so much to the table?

Cheers!
 
Data rate

Data rate

Q: As RED RAY data rate is about 15 Mbps what would Light Peak offer that even USB-2 doesn't already provide?
 
That is a good question. I'd venture to say that the ability to interconnect the REDRAY straight into a projector via a single cable?
 
now theres an interesting thought. would sure beat 4 cables for 4k projection. Though I doubt there's a protocol for that over lightpeak at the moment. would be awesome tho if maybe the redray had a module bay to leave possibilities open when a protocol is set?
for all we know Red already has left a possibility to upgrade redray sometime in the future:-P
 
George Tsai said:
now theres an interesting thought. would sure beat 4 cables for 4k projection.
Click to expand...

It's 4 cables if you're using DVI. If you're feeding a 4K projector using SDI, it's 8 cables (quad dual link).

Both DVI and SDI are designed to carry video data. LightPeak is allegedly a general purpose data transport, but there is no protocol that I know of for video on it.
 
M Most said:
It's 4 cables if you're using DVI. If you're feeding a 4K projector using SDI, it's 8 cables (quad dual link).

Both DVI and SDI are designed to carry video data. LightPeak is allegedly a general purpose data transport, but there is no protocol that I know of for video on it.
Click to expand...

hehe, makes it all that much more desirable to be able to use lightpeak:-)

i'm not sure but guessing that 4k projection is a total of what... 12 gbps? so may need to wait a bit till they scale up the datarate of lightpeak to only use single cable:-P
 
I have heard a lot of negative things about the HDMI as an interconnect cable, especially coming from the vDSLR rage. I've only experienced the loss of connectivity once or twice when say the camera has to get a new battery but the monitor doesn't so you shut down the camera and the HDMI doesn't carry the signal over until you also reboot the monitor.

LP is also a very thin cable (look at how small/maleable this 30m LP cable is in this video ) and HDMI definitely does not have the small/flexibility that LP demonstrates in the video.
 
Light Peak

Light Peak

I not arguing the merits of HDMI 1.4 v's Light Peak, but have you had an issue with HDMI or DVI in the home ?
 
I not arguing the merits of HDMI 1.4 v's Light Peak, but have you had an issue with HDMI or DVI in the home ?
Click to expand...

HDMI has been pretty painful. Many high end custom installers actually route analog video because they don't want phone calls in the middle of the night from angry celebrities. Starting in 2011 they will no longer be able to do this, at least for Blu-ray, thanks to the analog sunset, which prohibts anything > 480i over analog outputs.

The quality of EDIDs have been one of the real problems that has given HDMI a bad name. Some EDID issues include:

1. Displays have improper EDIDs. - Runco Plasmas used to have FF FF FF... as their EDID.
2. Displays report some odd resolution as their preferred resolution. e.g. 1920x1080 display reports 720p as its preferred resolution.
3. Some source devices crash when all EDID options are included in the sink device. e.g. There was once a $5000 DVD player that would power off when plugged into the Quantum Data 882 HDMI analyzer with the default EDID. If you uploaded a simple EDID then the player did not crash.
4. HDCP authentication.
5. Information not correctly passed from sink to source. e.g. Player -> Receiver -> Display. In this example display reports 2-channel audio. Reciever does not do the proper thing and passes the 2-channel info to the player, which in turn only sends 2-channel audio to the receiver.
6. HDMI switcher - You might send 10-bit 4:4:4 from a source that must pass through an HDMI switching device. e.g. reciever. The receiver may down sample to 8-bit, color convert, clip, who-knows-what, and then send off to the display. Owning an HDMI analyzer has really opened my eyes to some poorly engineered products.

None of these issues are specific to HDMI / DVI, but it is some of the problems consumers have run into with HDMI and naturally associate with HDMI.

HDMI plug fests are a hoot. Silicon Image should have done a better job.
 
Stuart English said:
I not arguing the merits of HDMI 1.4 v's Light Peak, but have you had an issue with HDMI or DVI in the home ?
Click to expand...

Besides the width/rigidity of the cables, not really. To be honest with you, I did not know that DVI was HD capable.

I figured that since RED wasn't releasing any news about REDRAY, that you guys were still toying around with I/O's and stuff, but I guess it makes sense to have standard outputs that are capable of plugging into tech a couple of years old, AND looking toward the future - ie. such as installing a LightPeak out now so that by the time those become the norm, people don't have to buy new REDRAYs to use on their new gear.
 
RED RAY

RED RAY

I/O is definitely one of those things that you need to keep an eye on, rather like lens mounts on a camera...
 
Stuart English said:
I/O is definitely one of those things that you need to keep an eye on, rather like lens mounts on a camera...
Click to expand...

I'll go ahead and assume that you guys already have plenty of eyes on this already =]. I can't wait to see my first true 4K projection.
 
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