Anyone else having Ninja trouble at 23.97? at DVinfo.net

Go Back   DV Info Net > The Tools of DV and HD Production > External Video Recording Solutions > Atomos Ninja / Samurai / Shogun

Atomos Ninja / Samurai / Shogun
HD-SDI field recorders supporting a variety of codecs.


Reply
 
Thread Tools Search this Thread
Old September 16th, 2013, 01:17 PM   #1
Trustee
 
Join Date: Mar 2002
Location: Ann Arbor, MI
Posts: 1,327
Anyone else having Ninja trouble at 23.97?

Had a colleague bring in a couple of Ninjas. When we went to shoot 23.97 on our Sony EX3s, both had trouble locking in the signal. We did use some AJA HA5s to convert from HDSDI to HDMI however.
That said once we went to 29.97, they didn't have an issue.
__________________
Jacques Mersereau
University of Michigan-Video Studio Manager
Jacques Mersereau is offline   Reply With Quote
Old September 16th, 2013, 10:17 PM   #2
Trustee
 
Join Date: Jan 2013
Location: Austin, Texas
Posts: 1,706
Re: Anyone else having Ninja trouble at 23.97?

Were you providing motion for the Ninjas to detect cadence with?
Gary Huff is offline   Reply With Quote
Old September 26th, 2013, 01:34 PM   #3
Trustee
 
Join Date: Mar 2002
Location: Ann Arbor, MI
Posts: 1,327
Re: Anyone else having Ninja trouble at 23.97?

Hi Gary,

I am not sure what you mean. Yes, we were sending 23.97 video signal to the Ninja.
I have never heard of any device needing video signal that has motion - like an object moving around in the frame before it could sync, but since every camera's signal does change slightly = noise floor fluctuation, I guess my answer would be yes.

Again, 29.97 was the same signal and that got the Ninjas to both sync.
__________________
Jacques Mersereau
University of Michigan-Video Studio Manager
Jacques Mersereau is offline   Reply With Quote
Old October 1st, 2013, 07:31 AM   #4
Contributor
 
Join Date: Jul 2005
Location: Sydney Australia
Posts: 868
Re: Anyone else having Ninja trouble at 23.97?

23.976P is normally embedded in a 29.97P stream with pulldown - thats what he meant by cadence. I'm reasonably certain that is the way the EX3 does it. Maybe the pulldown flags were lost in the sdi - hdmi conversion? Shouldn't be tho.
Can you set the Ninja to look for pulldown? I know I can on my Nano..
John Mitchell is offline   Reply With Quote
Old October 1st, 2013, 08:11 AM   #5
Trustee
 
Join Date: Mar 2002
Location: Ann Arbor, MI
Posts: 1,327
Re: Anyone else having Ninja trouble at 23.97?

The Ninjas were a owned by a colleague. I'll have to check about this next go around.

So, you have not had any issues with 24psf?

TIA!
__________________
Jacques Mersereau
University of Michigan-Video Studio Manager
Jacques Mersereau 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 > The Tools of DV and HD Production > External Video Recording Solutions > Atomos Ninja / Samurai / Shogun

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 05:45 AM.


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