Analog Component HD

where are you piping this into? your gonna need a pretty fast drive array ina desktop system.. but it will work. You loose a bit during the DA -> AD process.. but it will still look very very good.
 
So hold on, you're telling me that by shooting the component signal out from the cam, through this converter, then to a drive array will give you an uncompressed signal? what sort of desktop system has a hd-sdi input? And will it capture directly to the drive or will you still need to use an nle to capture the signal?
 
In the field, this seems like an insane way to shoot, but for green screen work, this would be superb. Good find Emanuel :beer:
 
my system i am typing on right now has HD-SDI inputs in.

The capture card can do a capture via a standalone program, or with integration of any of the Major NLE.. Sony Vegas comes with Decklink card support built right in.
 
4:4:4 10 bit RGB HD if you really want.. in a AVI or Quicktime wrapper. or Targa or BMP sequences.
 
I'm not even sure that AJA thing is capable of dual link SDI at 4:4:4 but even if it is then getting that to your computer is the easy part. It's creating a drive array fast enough to handle that data stream that's gonna get you. You need something like 350MB/s to handle uncompressed HD like that. So you're talking minimum a 4 channel Sata raid and even then it's gonna fill up so fast you'll barely have time to press esc. before the thing fills up. It's not impossible but very expensive and probably not worth the quality difference from a 1/3" chip. This is great for Lucas or Rodriguez who can afford the systems designed for this kind of throughput but I doubt there is a huge difference from 4:2:2 DVC-pro HD for most projections even theatrical ones..
 
I'm sorry there is no way that a single drive can handle that data rate. The only way that a drive that size could is if it were actually four 7200rpm laptop drives raided into that case. But you would need to cram a Raid controller, dual link HD-SDI and file transcoder into it as well. Also the largest 7200rpm laptop drive is 100GB so assuming you had a 330MB/s data stream you would get a whopping 6.6 minutes of uncompressed recording on it. And it's how much?
 
Who in the real world is capturing and working with uncompressed files on big projects? Even Starwars 2 & 3 were captured with some compression.
 
For 2/3 CCDs cams, yes...

...but even the third episode was shot @HDCAM SR - 4:2:2 for 440 megabits or 4:4:4 for the double 880...
 
Concerning the HD-SDI FLASH-RAM Recorder (discussion in neighbour thread), I sent an e-mail to Alexander Kitaev and I received a nice answer that updates and confirms the great compatibility of this device, that is, it works as PORTABLE HD recorder:

Codecs for Flash Recorder will be available some later as free upgrade (now they are testing).

JPEG codec: up to 30min with 1:10 compression.

They are planning to show in 2006 their HD products on NAB and CineGear.

They also updates their website page as you can follow here:
http://www.dvxuser.com/V3/showthread.php?p=375119#post375119
 
What are the specs on the analog component HD out? 10 bit, 8 bit? 4:2:2 or 4:4:4?

Whats the point of converting an inferior signal to a superior one that will not give you any gain in image quality? I understand wanting to capture through SDI, but if your original source is not of the same quality, what is the point? Your just requiring more bandwith and storage space for an image that is no different than what is captured on the P2?

Please prove me wrong.
 
I don't think anyone's tested what comes out of the analog ports; and analog doesn't have "bits" or "4:x:x" or anything like that. I would guess that the quality would be comparable to 8-bit 4:2:2.

Even the Canon's HD-SDI output is 8-bit 4:2:2 (carried within a 10-bit stream, but only 8 active bits of info).

The analog outputs avoid the compression stage. That's the whole point.
 
If they avoid the compression stage, (8 bit 4:2:2) what is the equivalent, being that it is analog and not even SDI?

If it was HD-SDI like the Canon's
there could be some advantage, but being analog, i dont see any. In actuality the fact that it is analog (and not SDI) already gives you a compression that cancels itself out
over any bypassing of the DVCOPRO codec based compression. Which I dont think it would anyway.

I think its really meant for hooking up to HD field monitors, but if some people want to believe its some secret tap into uncompressed HD, the equivalent to something like a Dalsa or a Viper or the Arri D20, than let them dream.
 
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