DVCpro50 shot at 23.98 interlace problems every fifth frame ... help

I have footage shot on DVCpro50 with the SDX900 Panasonic camera at 23.98 frame rate and I have captured it with the AJ-SD93 Panasonic deck through the built in Firewire cable to my G5 dual 2,7 ghz sysem with a Lacie Porsche 250 gb drive.
I captured using a custom capture preset that I made using the DVCpro 50 NTSC compressor at 720x480, setting frame rate to 23.97 (initially and then tried 29.97 later) and checked Anamorphic as well (footage is 16x9).
The problem is that on playback the image appears to be tearing, especially on all movement. This happens when watching in Viewer and in a sequence (set to match the clips capture settings). When I step through the image frame by frame it is clearly every fourth frame which gets jaggy and the edges of moving objects seperate and "tear" and then it is fine on the next frame. This appears on both my computer monitor and on my NTSC monitor.
I assumed that meant it was a pulldown issue and tried adjusting the pulldown settings in the playback control to no avail.
I have done a lot of reading on this discussion board as well as much experimentation with different capture presets and have found only a very slight difference between capturing the footage at 23.97 or at 29.97. It looks slightly better at 29.97 but the problem is still there.
When I go to the desktop level and look at the quicktime files with the quicktime player they look fine. IE no tearing and smooth playback. When I step through the image with the qtime player every fourth frame is a repeated frame which is also what I see when I look at the master tape frame by frame with the AJ-SD93 deck cabled directly to a NTSC monitor. This I assume is the pulldown on the tape created by the camera when recording 23.97 video rate to the 29.97 tape.
So then I decided I would take the footage at 29.97 with the repeated pulldown frames since that looks fine on both the tape and the qucktime files BUT when I captured at 29.97 it played back once showing a "clean" image - no tears, the fourth frame a repeated frame BUT then when I played a second time it switched and began displaying the fifth frame as a "tear" again.
So then I thought this is simply a playback issue and if I edit to tape on the AJ-SD93 it will "pullup" the image and fix the problem as it goes back to tape BUT NO. The tearing was worse when I layed it back to tape.
SO what is happening? Can anyone out there help?
My preference is to capture at 23.97FPS DCVpro50 NTSC anamorphic and be able to play back with out any tearing.
Is this possible?

you should try capturing as regular run of mill video. launch cinema tools, import the video file, remove the telecine and then import the .rev file into fcp.
i'm assuming the sdx900 is writing the video at 29.97fps interlaced. changing the frame rate of the capture compressor is mucking up your workflow. try cinema tools, see what happens.

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Unusual interlacing problem

Greetings,
I recently shot a short 16mm film and got it telecined to DV NTSC with timecode/keycode window-burn. I imported the flex file I got from the lab into a Cinema Tools 4 database, then exported a batch capture list, and captured the footage into FCP 6. Everything seemed to have worked correctly, with the window-burn on the video matching the timecode and keycode information in CT. HOWEVER, when viewing the footage in the CT window, certain frames have interlacing problems. The pattern is:
A2, B2, C1, D1, D3
For every frame, the last number on the burned-in timecode is a bit fuzzy, but for every C1 and D1 the last number on the timecode and the last two numbers on the keycode are barely legible. C1 and D1 are also the two frames when the video image has an interlaced look to it.
And this is happening BEFORE I have even tried to reverse telecine! The footage has none of these problems when viewing on FCP and the original quicktime videos look fine as well. It is only in the CT window that I get this problem.. I am planning on eventually getting the negative conformed from an EDL list, and am worried this problem might be a sign of some sort of discrepancy between the film negative and the Cinema Tools database.
The info I entered into the database initially was TK Speed: 24 and TC Rate: 30 NDF, but have tried experimenting with different variations, none of which fixed the problem. ALSO, when I went ahead and reverse telecined the clips with CT, it took out every D1 frame correctly, but the interlacing and illegible numbers problem persisted. When I connected the new reverse telecined clip into FCP, the problem was still there. But when I checked the new reverse telecined clip quicktime file, everything looked perfect, without the interlaced look in the image, with completely legible window-burn, and with every D1 removed. So I figure it must be a problem with Cinema Tools!
I apologize for the long post, but I'm a student filmmaker trying desperately to get my senior film together and avoid possibly costly and time-consuming mistakes down the road. Any thoughts/ advice would be greatly, greatly, appreciated!
Thanks,
Zachary

Greetings,
I recently shot a short 16mm film and got it telecined to DV NTSC with timecode/keycode window-burn. I imported the flex file I got from the lab into a Cinema Tools 4 database, then exported a batch capture list, and captured the footage into FCP 6. Everything seemed to have worked correctly, with the window-burn on the video matching the timecode and keycode information in CT. HOWEVER, when viewing the footage in the CT window, certain frames have interlacing problems. The pattern is:
A2, B2, C1, D1, D3
For every frame, the last number on the burned-in timecode is a bit fuzzy, but for every C1 and D1 the last number on the timecode and the last two numbers on the keycode are barely legible. C1 and D1 are also the two frames when the video image has an interlaced look to it.
And this is happening BEFORE I have even tried to reverse telecine! The footage has none of these problems when viewing on FCP and the original quicktime videos look fine as well. It is only in the CT window that I get this problem.. I am planning on eventually getting the negative conformed from an EDL list, and am worried this problem might be a sign of some sort of discrepancy between the film negative and the Cinema Tools database.
The info I entered into the database initially was TK Speed: 24 and TC Rate: 30 NDF, but have tried experimenting with different variations, none of which fixed the problem. ALSO, when I went ahead and reverse telecined the clips with CT, it took out every D1 frame correctly, but the interlacing and illegible numbers problem persisted. When I connected the new reverse telecined clip into FCP, the problem was still there. But when I checked the new reverse telecined clip quicktime file, everything looked perfect, without the interlaced look in the image, with completely legible window-burn, and with every D1 removed. So I figure it must be a problem with Cinema Tools!
I apologize for the long post, but I'm a student filmmaker trying desperately to get my senior film together and avoid possibly costly and time-consuming mistakes down the road. Any thoughts/ advice would be greatly, greatly, appreciated!
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Zachary

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revised posting to an earlier question...
any of you fcp folks ever experienced a capture phenomenon where every fourth frame of a captured 24p (2:3:3:2 advanced pulldown removal) clip was BLURRED by thin horizontal lines WHEREVER THERE IS MOTION WITHIN THE FRAME? this results in a stilted "jerky" motion when the clip is played. other words, a character moves an arm-- every 4th frame of that movement is "blurred" with these thin lines.
i'm shooting an xl2, at 24p advanced, 16:9. 1/48th shutter. capture is set for dvntsc 23.98 with 2:3:3:2 advanced pulldown removal and 16:9 anamorphic.
strange thing is, i've captured and edited 21 reels clean, without this problem. then had a capture issue where a few clips, for some reason, captured at 29.97 so i reset my capture settings as above and captured these clips again. since that time (the last two reels of shot footage) i've had this bizarre fourth frame issue crop up where the motion is blurred by these lines. something's going on but damned if i can figure it out.
few forum guys have offered help but nothing that's solved the issue and the question is now buried so... here 'tis again. thanks.

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Regards

This is normal...this is how the footage SHOULD look. How does it look when you play it? Fine, right? You only see the odd interlaced frame when you step thru frame by frame? This is all VERY normal.
1080i24 records 24frames as a 30 frame stream. Meaning that 24 frames are tuck into a 30 fps video file. This is exactly what happens when film is telecined onto tape...24fps recorded onto tape at 29.97fps, and every 3rd frame being a blend of a couple frames. This is normal.
You can just edit this like it is...as you should have no problems (only shooting 720p 24pn gets you 23.98 TRUE fps)...or you can try to reverse telecine a clip or two as a test and see what that looks like. But really, there is nothing wrong here.
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Another interlace problem?

I am editing 2 thesis films for school, and wasnt the one to capture the footage. It was shot on the cannon xl2 but im pretty sure it wasnt advanced, it was just regular 24p. Nobody in class has been able to figure out why some shots (when there is movement) seem to have this interlacing problem. Horizontal lines on all the edges of objects. I know there are other threads on this but i didnt find the answer in them. I cant recapture all this footage, just don't have time. If 24p is captured at 29.97 does this happen? Should my editing timebase be 23.97? I feel like an idiot not being able to figure this out. Oh it looks fine when its playing from the timeline, its only bad when exported. Any help would be greatly appreciated.

I did the reading, and understand what timebase I am editing in, and what framerate the clips were recorded and captured in. They all seem to be correct. Maybe interlacing was the wrong term. When a quicktime file is exported, upon viewing, horizontal stripes are seen whenever there is motion in the frame. I know that it should not look like that. The footage was recorded 24p captured 29.97 and editied 29.97. Your feedback was good information for me but has not solved the problem. I did try converting a file with cinema tools earlier and it really screwed up my sequence, so I abandoned that alltogether. I also gave up on that because i now know that it should stay 29.97.

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Hi, another interlacing question...
So I captured my footage (originally shot on film, telecined to digibeta) at 10 bit uncompressed to do my online (the offline edit was a 29.97 DVCam dub of that digibeta). Since I'm finishing on 29.97 digibeta, I didn't remove the pulldown as I captured offline or online, and am editing both at my finishing medium's frame rate. So yes, I have the duped fields in there, but it also keeps things simple and I've theoretically been seeing exactly what the finished version will look like the whole time.
Last time I did this workflow I used a G4 running a dual 867 processor with a gig of RAM, and I had some jitter and interlacing "comb" visible when I watched the 10-bit on the Mac, but when I output to digibeta and DVD, it looked fine. So it appeared to be that my computer simply didn't have the juice to display it properly, but that the media itself was fine, as were both ways of outputting.
Now I have a spankin' new Mac Pro with a quad 2.66G processor and 3Gigs of RAM, so I figured that "display issue" was behind me. But not only do I still see jitter and comb on my computer monitor, I also see it much worse on the test DVD I just made. So the problem isn't just the display. The look is very similar to when you capture a clip and remove the pulldown, but fail to start capture on an A frame (but since this is all 29.97, I know that isn't the problem).
I thought it might be that the drives were not fast enough, so I reformatted two of my internal drives into a Raid 0 and put the media there and reconnected it. The raid seems happy, and it's less than half full, but the video doesn't look any better.
Any idea what else could be causing this? I did just upgrade the project from the FCP 4.5 version I started to the FCP 6 on the new machine, plus my experience has been that moving from offline DV to online can allow in some bugs, but the ins/outs, clip names, frame rates, haven't changed. And of course I've been editnig 29.97 DV this whole time without seeing any of the interlacing on the monitor or tyhe outputs. Could field dominance have anything to do with this? I've never adjusted that in previous applications of this workflow, so it doesn't seem relevant, but I confess I'm not sure what I'm messing with there. Do I need still more RAM? The computers we ran at school a couple of years ago were running 10 bit video on G5s without significant upgrades to my knowledge, and this is just a single stream with a few tracks of audio here. I'm afraid to spend any more $$ until I'm pretty confident it'll solve the problem (shoestring budget here of course). Any thoughts?
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Thanks for the reply. I don't really have a way to hook up my computer to a broadcast monitor. I know I should, but can't really afford the card to do it. So I color corrected my footage carefully during telecine, and for things like this issue, I'm making DVDs quick and dirty through iDVD, then watching them on my home TV (an LCD that plays both SD and HD).
I suppose something in my DVD player and/or TV might be giving me the weirdness in the display, but I think I mentioned I did this same workflow before on a lowly G4, and back then while the computer display showed the interlacing problems, the final output looks fine on the same TV/DVD setup I'm using now. (And I also output that timeline on the previous project to a digibeta master and it looked great too--unfortunately no way to test that digibeta output on the present project without going to a post house, which of course cuts into the budget.)
Maybe I need to bite the bullet and stop being so cheap, but I'm hung up on the fact that it worked fine before, and I can't see how this stronger computer is performing comparatively poorly.
BTW I do see the interlacing in FCP viewer and canvas, but only when it's set to 100% size. And it looks identical in Quicktime as well.
The other thought that just occurred to me is that it might be a codec issue. Perhaps the uncompressed 10 bit codec on my new machine isn't quite the same 10 bit uncompressed as the Kona card used to capture the video for both new and old projects. Maybe my old computer worked ok because that codec was slightly different, or I may have even copied the codec to that computer at some point in the past.
Any of this spur any other ideas? Again I really appreciate the help...
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I am working on a volunteer project for a local museum wherein some old VHS tapes need to be digitized. The final video (probably MPEG-2) will be accessible from research computers at the museum. File size is not a big issue, but preserving as much quality (such as it is) from the 10+ year old VHS (not SVHS) tapes is essential.
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Here's a puzzle though ... I tried the same thing with the original clip (the one captured as progressive instead of LFF) and it smoothed out as well. Perhaps Premiere is smart enough to recognize what it's getting for input, and ignores stupid commands? Whatever, this means I can use my original footage and not have to recapture 1.5 hours of video.
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DVCpro50 shot at 23.98 interlace problems every fifth frame ... help

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