Kona field issue

[David Roth weiss]

[Ben Holmes] “I am using Uncompressed 10-bit for capture and sequence – in PAL. All my settings appear correct – upper field first for the sequence.”

Ben,

Shouldn’t the seq. be lower field first?

David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los Angeles

POST-PRODUCTION WITHOUT THE USUAL INSANITY™

A forum host of Creative COW’s Business & Marketing, and Indie Film & Documentary forums.

[Tinboxtwo]

try toggling between “single field” and “full frame”in the codec tab of the kona control panel.
hope that helps

[Gary Adcock]

[David Roth Weiss] “Shouldn’t the seq. be lower field first?”

NO
PAL is Upper first- in SD and in 25/50i HD (when you are working in interlace)

gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows

[David Roth weiss]

[gary adcock] “PAL is Upper first- in SD”

Right!!! In the three years since I last worked in Europe my mind has obviously turned to mush. Thanks Gary.

David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los Angeles

POST-PRODUCTION WITHOUT THE USUAL INSANITY™

A forum host of Creative COW’s Business & Marketing, and Indie Film & Documentary forums.

[Jeremy Garchow]

A couple of questions for you. How do you cut on an existing cut? Just trying to understand what you mean by that.

And was this project started in FCP5? Check for a ‘shift fields’ filter on your timeline footage.

Also, if you have set up single frame viewing on your Kona card, it is quite possible that your monitor and canvas won’t match as the canvas will show only a deinterlaced version of your footage (as it can’t display interlace), and the kona will show you one of the fields.

Jeremy

[Ben Holmes]

Jeremy

Sorry for delay, been flat out.

[JeremyG] “How do you cut on an existing cut”

I’ve captured a sequence of shots already cut together. I am trying to seperate those back out into individual shots. Hope this makes sense – please don’t ask me to explain the workflow, it’s a bit individual. Usually when I do this, I line up the timeline on the first frame of the next shot, razor blade it and voila – I have two seperated shots I can move around the timeline.

[JeremyG] “And was this project started in FCP5? Check for a ‘shift fields’ filter on your timeline footage”

No, and there is none.

[JeremyG] “Also, if you have set up single frame viewing on your Kona card, it is quite possible that your monitor and canvas won’t match as the canvas will show only a deinterlaced version of your footage (as it can’t display interlace), and the kona will show you one of the fields. “

Originally I thought this was the issue. If I set the Kona to display the whole frame, when I am on the last frame of one shot, it shows a flickering frame made up of one field from the outgoing, and one of the incoming. Making a cut on this point leaves a flash field on the top of the newly shortened clip.

Sorry – I fear that trying to explain this is tricky, but I hope that extra info helps. I have been using Kona’s for a long time, and have never had an issue like this – it’s literally impossible to seperate two shots in a single clip cleanly. I should add that in further tests this is not happening on EVERY cut, just to complicate matters, but as I can only see the problem on my monitor, and not on the screen, it’s easy to end up with flash frames in an edit, when you remove shots from an existing clip. I also cannot slow down video smoothly, despite using the Kona capture and sequence presets unaltered. Clips drop on my timeline without requiring a render, by the way.

I notice that the menus within the capture preset have changed somewhat in FCP 6.0 – especially the advanced tab in the video section. Perhaps I have an issue with the Kona preset in PAL – This happened to me many years ago with a Voodoo card, when the manufacturer admitted there was an issue with the supplied PAL preset.

Any further help greatly appreciated.

Ben

[Jeremy Garchow]

You did install the latest drivers for FCP6, yes?

What happens if you delete the footage under the footage you have placed on top?

I am still struggling to figure out what you are doing, but it’s cool. I’ll try and help anyway.

Jeremy

[Matt Larson]

[JeremyG] ”
I am still struggling to figure out what you are doing, but it’s cool. I’ll try and help anyway.”

I’ll try and put on my mediator hat: I think what he is saying is that he has an edited show that has been laid off to tape. He has REDIGITIZED that show from the tape and is using the blade tool to cut the redigitized edited program into individual shots.

Have you tried opening this footage in Quicktime to see if you see any field issues there? I know you can’t cut with the blade, but maybe you can visually see if anything looks off.

Another thought is to put this into a sequence with Upper Field first (if that’s what you need it to be) and save it out as a self contained QT. Try it with a short test clip. Might force things back to the right order.

[Jeremy Garchow]

[Matt Larson] “I’ll try and put on my mediator hat: I think what he is saying is that he has an edited show that has been laid off to tape. He has REDIGITIZED that show from the tape and is using the blade tool to cut the redigitized edited program into individual shots. “

That’s what i took from it as well.

[Ben Holmes]

Hi Jeremy

Yes – I have the latest version of Kona drivers – 4.0. I suspect this may be the problem, as this did not occur before the upgrade.

Let me try to explain this better. I am capturing an edit effectively – in other words it is a sequence of shots with cuts between each shot. Think of it as capturing a previously exported timeline with multiple shots in it, one which has already been laid off to tape. All I am doing is putting this edit into the timeline and cutting it back up into its individual shots. When I locate the first frame of any shot in this clip I am razor-blading it so I split the edit back up into it’s individual shots. Sometimes when I do this, I appear to be cued up BETWEEN the two shots, so the frame I am on contains one field from the incoming and outgoing shots. When I make the cut, I get a field of the other shot left behind, which I then have to remove, by shortening the shot by one frame.

I know how much help you give people on these forums Jeremy. Any help you can give me would be appreciated – I understand the field/frame setting on the Kona can be changed on the output, I have done this, and when I am on a ‘bad cut’ I see a flickering image made up of a field from each shot. I have NEVER seen this before on my systems, and it’s a real bore.

Thanks again

Ben