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AJA KONA 2 bug with COLOR

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David Battistella
AJA KONA 2 bug with COLOR
on May 24, 2007 at 7:37:30 pm


Just wanted to let you know that 23.98 DV material is not playing back properly through the K2 with the KONA 2 output set to 23.98 8 bit or 10 bit.

It does display the 23.98 material when the device output in COLOR is set to 29.97 8 bit.


Thanks,
David



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JeremyG
Re: AJA KONA 2 bug with COLOR
on May 24, 2007 at 8:00:08 pm

I would think that would be normal. You can't play out 23.98 material out of FCP if your output is set to 23.98 and your monitor doesn't support 23.98 SD. But it will if you play 23.98 media out @ 29.97 adding the pulldown.

I wouldn't call this a bug, I'd call it an NTSC limitation.


Jeremy


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Bob Zelin
Re: AJA KONA 2 bug with COLOR
on May 24, 2007 at 9:04:41 pm

ya see David - everyone yells at me for telling them to work at 59.94, but everyone says "nothing wrong with working at 23.98".
Jeremy is of course correct, just set to 29.97, but if you input your 23.98 material at 59.94 from your VTR, you dont' even have to think about these settings.

Bob Zelin


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JeremyG
Re: AJA KONA 2 bug with COLOR
on May 24, 2007 at 9:33:36 pm

Alright, here we go again. It's a flip of a switch to do what David wants to do. If we had monitors that could support 23.98 SD, this wouldn't even be a discussion. Who wants to add interlace to a 23.98 progressive image? Why capture pulldown when it will throw off the 3:2 cadence of the whole piece? Again, don't blame David as it's not his fault. People work @ 23.98. We deal with it. You know how we deal with it in this case? Flip the output to 29.97. Thanks to AJA it's extremely simple and rather transparent.



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David Battistella
Re: AJA KONA 2 bug with COLOR
on May 25, 2007 at 12:52:23 am



Why does AJA have an NTSC 23.98 8 or ten bit choice then?

Color recognizes it as 23.98 material.

I see what you are saying. I have been shooting everything in anamorphic 24PA for a long time now. It's not that big a deal as the KONA plays it out at 29.97 fine, BUT i get the advantages of sending the Progressive image to the DVD and also when encoding to WMV or .mov files. It;s not such a retarded way to work. IT also upconverts nicely to HD this way.

David



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JeremyG
Re: AJA KONA 2 bug with COLOR
on May 25, 2007 at 1:01:38 am

[David Battistella] "Why does AJA have an NTSC 23.98 8 or ten bit choice then?"

because AJA understands the needs for this option. It's just like it has a 720p 23.98 uncompressed setting. Just like you said, we can get to 1080 23.98 psf this way. You can record to a device (such as another computer) that understands 23.98 sd, and then the obvious reasons you mentioned.


But in order to monitor on a monitor that doesn't understand 23.98, we must watch it wrapped in 29.97.



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David Battistella
Re: AJA KONA 2 bug with COLOR
on May 25, 2007 at 1:58:20 am


Thanks JG,

Nice to see you here.

david



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JeremyG
Re: AJA KONA 2 bug with COLOR
on May 25, 2007 at 2:22:26 am

Thanks, David!

? & ?

Jeremy


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JeremyG
Re: AJA KONA 2 bug with COLOR
on May 25, 2007 at 2:33:47 am

[JeremyG] "? & ?"

Hmm, I guess the cow doesn't read keycaps.



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David Roth Weiss
Re: AJA KONA 2 bug with COLOR
on May 25, 2007 at 2:16:40 pm

[Bob Zelin] "everyone yells at me for telling them to work at 59.94"

They just want to make sure you're really listening when they tell you that there is a huge difference between monitoring video at 29.97 and converting video to 29.97.


David Roth Weiss
Director/Editor/Post-production Supervisor
David Weiss Productions, Inc.
Los Angeles


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gary adcock
Re: AJA KONA 2 bug with COLOR
on May 25, 2007 at 12:31:26 pm

[David Battistella] "Just wanted to let you know that 23.98 DV material is not playing back properly through the K2 with the KONA 2 output set to 23.98 8 bit or 10 bit. "


there is not any playback of 23.98 SD content in any way, shape or form.
That setting is there to allow you to convert SD 24p to HD 24p on output.

SD must always play to a monitor at 29.97, just as 720p needs to playout at 60p

gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows


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Simmie
Re: AJA KONA 2 bug with COLOR
on May 25, 2007 at 2:29:44 pm

Reading all these recent posts about 23.98 and drop-frame make me really glad I live in PAL-land...

-Simmie
2 G5 - Kona LH
3 G4s - Cinewave
1 xbox360, 1 PSP, 1 PS2 & a Gamecube
http://www.speak.co.uk


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David Battistella
Re: AJA KONA 2 bug with COLOR
on May 26, 2007 at 5:39:14 pm



Considering all of the issues I can saythis. If I select a 23.98 easy set up in FCP with 23.98 material, the material plays fine out the K2. The K2 is doing the Pulldown. If I select the same frame rate with Colr it does not play out the Kona.

I understand what's been writen in the thread, but I wanted to mention that 23.98 playback from color does not work.

David



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JeremyG
Re: AJA KONA 2 bug with COLOR
on May 26, 2007 at 5:55:56 pm

If you look at the video output in the view menu of FCP, I'd wager it's set to 29.97, not 23.98. Since Color isn't that smart, you just have to manually set it to 29.97.


Jeremy


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gary adcock
Re: AJA KONA 2 bug with COLOR
on May 26, 2007 at 6:18:47 pm

[David Battistella] " If I select the same frame rate with Colr it does not play out the Kona. "

David
Not sure what the problem is, it is working correctly out of color on my K2, K3x and K3e cards, using the 4.0 driver on

did you configure the kona card for output in Color?

gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows


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David Battistella
Re: AJA KONA 2 bug with COLOR
on May 28, 2007 at 12:13:36 am



Yep Gary. I set the Kona up in Color.

If I have DV 23.98 media loaded (pulldown removed on injest) in Color and the K2 control panel set to 23.98 and the Color prefs set to 23.98 all I see is a large sync bar in the Broadcast monitor.

If I reset them both to 29.97 it is fine. This is why I thought it was a bug, because the same media playing out of FCP with the K2 set to 23.98 and the K2 Easy setup for 23.98 8 bit is fine.

David



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