Workflow for AJA KONA 3 HD : how to work in 25p ?

[Rory Hinds]

I’m having the same problem with setting the Kona 3 to output in 25p give me a green mess.
The only way to get it out correctly is to set it to 25i.

I’m on a Mac Pro DualCore 3Ghz, 10gb RAM, Kona 3, QT 7.1, FCP 6.0.1, Kona 4 drives..

Going to a M2000 VTR and a Decklink HDLink. I have to set my Control Panel to 1080i25 as 1080p25 doesn’t work.

Rory Hinds
mine
http://www.minefilms.com

[Gary Adcock]

[Rory Hinds] “I’m having the same problem with setting the Kona 3 to output in 25p give me a green mess.
The only way to get it out correctly is to set it to 25i. “

thats because you are not shooting P….

the format is PsF and the output is always 50i…..

25i is the naming structure.

gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows

[Rory Hinds]

Hi Gary

Nice to meet you at IBC.. I’m still having issues with my card and am talking with Gerry to sort things out.

How come they have 1080p25 and 1080p50 as format options in the control panel?

I’ve had major issues with my card and have pretty much replaced everything to issolate the problem. I’m actually starting to think I have a bad Mac or Graphics card as I can’t explain why video in and out is such and issue.

Have you seen a situation where the card doesn’t see HD video in on one input but not there other, even swopping them around.

I also get video dropping out when viewing the feed into a HDLink and get “spikes” on the signal too which look like “tearing”.

All I need is a stable system 🙂

Rory Hinds
mine
http://www.minefilms.com

[Tania Chepurna]

Please, advice, how did you solve this problem.

I have the same problem, but from another side. I need transfer from Telecine thru Aja Kona 3 film print in 1080 25p. When I choose in Aja control panel 1080 25p have the same like in your panel. I use QT 7 for capture video.

With best regards
Tania

[Gary Adcock]

[Tania Chepurna] “I have the same problem, but from another side. I need transfer from Telecine thru Aja Kona 3 film print in 1080 25p. When I choose in Aja control panel 1080 25p have the same like in your panel. I use QT 7 for capture video. “

Tania, download the free VTX exchange App from AJA to do this, you will not be able to correctly capture this kind of content in the QT player.

Note that AJA calls this format 1080 25i (which is really PsF)

gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows for the Digitally Inclined
Chicago, IL

https://library.creativecow.net/articles/adcock_gary/AJAIOHD.php

[Kenny Fields]

Hi Gary,
We are having a similar problem capturing from our HD Cam deck using the 25p setting on our Kona 3 card. I tried your advice to use the 25i easy setup and indeed I was able to capture successfully.

The problem now is that I have interlaced picture, not progressive. This will create a problem for my client down the road.

We have confirmed the difference between what we have on the 25p HD Cam tape, and what we have captured by noting flicker when we stop the video in the timeline on some action. The same action on the tape does not have any flicker because it is truly progressive. This is noticeable on our Sony CRT, not on our LCD’s.

So the question is, can we actually capture this 25p tape and have it be truly progressive so there is not any field flicker?

Thanks for your help.

Kenny

[Gary Adcock]

[Kenny Fields] “The problem now is that I have interlaced picture, not progressive. This will create a problem for my client down the road. “

why, the signal is the same?

If your original was an HDcam tape, it was recorded with a Sony camera and it will be PsF or Progressive Segmented frame, the method that Sony applies to all 1080 content their cameras capture.

[Kenny Fields] ” The same action on the tape does not have any flicker because it is truly progressive. This is noticeable on our Sony CRT, not on our LCD’s.”

EHH???? if it was a TRUE PROGRESSIVE signal, it would not play at all on a CRT, since CRT’s cannot handle a 1080 signal as True Progressive

gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows for the Digitally Inclined
Chicago, IL

https://blogs.creativecow.net/24640

https://library.creativecow.net/articles/adcock_gary/AJAIOHD.php

[Kenny Fields]

If the signal is the same, then how come when I monitor footage directly from my deck I get no flicker, but when I monitor the same footage from my FCP timeline, I do see flicker?

We monitor Sony’s “progressive” formats like 1080psf 23.98 all the time on our CRT’s. I realize that it is not “true progressive” however it does display the progressive characteristic of not flickering when paused on a frame with action. The material on the PAL 25i timeline has noticeable flicker when paused on a frame with action.

Kenny

[Gary Adcock]

[Kenny Fields] “If the signal is the same, then how come when I monitor footage directly from my deck I get no flicker, but when I monitor the same footage from my FCP timeline, I do see flicker?”

Check the FCP field dominance, it would not be the first time apple forgot what side of the planet.
Also check to make sure the Kona Control panel/ Codec is set to show “frame” and not “field”.

One other thing to try is open the FCP Seq settings and set the field order to “None” just like when trying

“The material on the PAL 25i timeline has noticeable flicker when paused on a frame with action. “

I am really betting on an incorrect setting in the control panel.

gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows for the Digitally Inclined
Chicago, IL

https://blogs.creativecow.net/24640

https://library.creativecow.net/articles/adcock_gary/AJAIOHD.php

[Kenny Fields]

These are all good suggestions but none proved to be the answer. We have changed the field dominance in the sequence to none, changed the clip field dominance to none (in the browser) but the flicker is still there. Checked the Kona control panel and playback is set to frame, not field

I believe this may be caused by the Kona card seeing the signal from the deck (F-500 set to 1080 25p) as 25i. When I go into the Kona control panel, and look at video in, it is red and saying 1080 25i. Not sure why it sees the signal that way as our Avid is able to capture from the exact same deck and not have the same flicker problem.

Also, when we bring 25p file sequences into the FCP, they do not have any flicker and we are able to output them to tape at 25p and the tape does not have any flicker.

I’ve spoken with AJA and they did not have any definitive answers either… just the same things that we have talked about like changing field dominance etc. I also got the flicker when capturing with AJA’s capture only tool which takes the FCP out of the equation completely so that is more evidence that this is being caused by the Kona card seeing the signal as 25i and not 25p.

Kenny