720p60 uncompressed at DVinfo.net

Go Back   DV Info Net > JVC ProHD & MPEG2 Camera Systems > JVC GY-HD Series Camera Systems

JVC GY-HD Series Camera Systems
GY-HD 100 & 200 series ProHD HDV camcorders & decks.


Reply
 
Thread Tools Search this Thread
Old March 19th, 2005, 01:28 PM   #1
Trustee
 
Join Date: Aug 2003
Location: Vancouver BC Canada
Posts: 1,315
720p60 uncompressed

This web site is not the origionator of this info, but is kind enough to host it at the moment.

http://www.sanjinjukic.com/index_JVCproHD.html

"In addition to providing superior quality HD recording in the 24p format, the GY-HD100U can output an uncompressed 720/P60 HD signal."

I haven't heard anyone mention this ability of the cam. One would need a HDSDI converter and one hell of a RAID setup, but that is one hell of an option for the pro's.
__________________
Damnit Jim, I'm a film maker not a sysytems tech.
Ken Hodson is offline   Reply With Quote
Old March 19th, 2005, 01:38 PM   #2
Trustee
 
Join Date: Jun 2004
Location: Denver, Colorado
Posts: 1,866
...or

...or they merely mean the uncompressed output can be streamed out the analog component YPbPr outputs.

Edit: Never mind what I said. Here's the quote:

"A third party HDSDI converter can provide the full resolution uncompressed signal to an array of systems with no signal delay."
Tom Roper is offline   Reply With Quote
Old March 20th, 2005, 07:10 PM   #3
Major Player
 
Join Date: Apr 2004
Location: Austin, Texas
Posts: 704
My question would be will the camera output ONLY 720p60 out of the uncompressed output?

Seems odd that they would make sure to mention the 60 frames per second.

What about 720P24 uncompressed?


I guess we'll have to wait and see.
__________________
Luis Caffesse
Pitch Productions
Austin, Texas
Luis Caffesse is offline   Reply With Quote
Old March 20th, 2005, 09:13 PM   #4
Trustee
 
Join Date: Aug 2003
Location: Vancouver BC Canada
Posts: 1,315
"My question would be will the camera output ONLY 720p60 out of the uncompressed output?"

My guess is yes. The current HDV tape spec can't handle 720p60. But we won't know for sure untill release.

"Seems odd that they would make sure to mention the 60 frames per second."

Why is that? It is the standard frame rate of HD 720.

"What about 720P24 uncompressed?"

Yes of course. And all frame rates in between.
__________________
Damnit Jim, I'm a film maker not a sysytems tech.
Ken Hodson is offline   Reply With Quote
Old March 20th, 2005, 09:56 PM   #5
Barry Wan Kenobi
 
Join Date: Jul 2003
Location: North Carolina
Posts: 3,863
The HDV tape spec specifically does allow for 720/60p. It's still encoded at 19mbps though. Don't understand the comment about frame rates though -- HDV provides for only 25, 30, and 60 frame rates, not for 24 and not for any frame rates inbetween.
Barry Green is offline   Reply With Quote
Old March 20th, 2005, 10:58 PM   #6
Trustee
 
Join Date: Aug 2003
Location: Vancouver BC Canada
Posts: 1,315
I forgot 60p was HDV spec for 720p as well.

"Don't understand the comment about frame rates though -- HDV provides for only 25, 30, and 60 frame rates, not for 24 and not for any frame rates inbetween."

Luis asked if 24p would be available uncompressed. Not if it was HDV spec. My answer was yes, being that 60p was available uncompressed you can bet all lower frame rates will be as well. Make sense?
__________________
Damnit Jim, I'm a film maker not a sysytems tech.
Ken Hodson is offline   Reply With Quote
Old March 21st, 2005, 02:14 AM   #7
Barry Wan Kenobi
 
Join Date: Jul 2003
Location: North Carolina
Posts: 3,863
Ah. Okay. Well, I guess the confusion was when you said "all frame rates inbetween" -- I took that to mean that you were saying it would be like the VariCam, capable of imaging at all frame rates. But now that I read it again, I think you're saying that any frame rate the camera is capable of, would also be available on the uncompressed output (so, the spelled out 24 and 30, and presumably 60).

Of course, if the camera actually is capable of fully variable frame rates, that would make for some very interesting news!
Barry Green is offline   Reply With Quote
Old March 21st, 2005, 10:08 AM   #8
Major Player
 
Join Date: Apr 2004
Location: Austin, Texas
Posts: 704
"Of course, if the camera actually is capable of fully variable frame rates, that would make for some very interesting news!"

Well, that would just be a dream....
although I still have a feeling that the Pana DVCProHD might have variable frame rates, but I'm not holding my breath.

As far as I'm concerned, uncompressed outputs with 720P24 is already VERY interesting news.

This new JVC camera could give some stunning images if you're willing to be tethered to a computer or a deck of somekind.

Remember just a year ago people were freaking out over the kinneta which promised uncompressed HD for 40-50K?
Granted this camera is not in the same class exactly, but who would have thought we'd be talking about uncompressed 720P at 24fps for under 10K?

I'll believe this when I see it, but it is very exciting.
__________________
Luis Caffesse
Pitch Productions
Austin, Texas
Luis Caffesse is offline   Reply With Quote
Old March 22nd, 2005, 06:57 PM   #9
Major Player
 
Join Date: Apr 2004
Location: Austin, Texas
Posts: 704
From this article


"The new camera can't record 720p at 60 frames per second, but future models will. But the new ProHD is capable of outputting 720p/60 for live transmission or recording on an external video server."

Now it makes sense to me why the first article we were disucssing specifically mentioned 60fps.



This article is being discussed in ANOTHER THREAD.
I just wanted to quote that section since it tied into the earlier discussion here.

__________________
Luis Caffesse
Pitch Productions
Austin, Texas
Luis Caffesse is offline   Reply With Quote
Old March 23rd, 2005, 04:18 AM   #10
HDV Cinema
 
Join Date: Feb 2003
Location: Las Vegas
Posts: 4,007
<<<-- Originally posted by Luis Caffesse : My question would be will the camera output ONLY 720p60 out of the uncompressed output?

Seems odd that they would make sure to mention the 60 frames per second. -->>>

Think about how 24fps is handled in the world -- 2:3 pull-down is added. The analog and HD-SDI ouput of 720p is always 720/60P.

Latter this week my HDV@Work Newsletter for Video Systems will cover ProHD in detail. (Including the Motion Filter.) To sign-up you must go to VS's site.

You should try to also get last week's because it has an explanation of PCM audio for the ProHD format. That's 4 channels of audio.
__________________
Switcher's Quick Guide to the Avid Media Composer >>> http://home.mindspring.com/~d-v-c
Steve Mullen is offline   Reply With Quote
Old March 23rd, 2005, 08:35 AM   #11
Obstreperous Rex
 
Join Date: Jan 2001
Location: San Marcos, TX
Posts: 26,900
Images: 513
The link for Steve's excellent newsletter "HDV at Work" is:

http://enews.primediabusiness.com/en...v_work/current

I will add this to our HDV Info Net Resources page directly.
__________________
CH

Search DV Info Net | DV Info Net Sponsors | A Decade (+5) of DVi | ...Tuesday is Soylent Green Day!
Chris Hurd is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > JVC ProHD & MPEG2 Camera Systems > JVC GY-HD Series Camera Systems

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 11:55 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network