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Problems using NTSC 24p Advanced within Final Cut Pro
I recently shot some material NTSC 24p Advanced on a Canon XL2. I have used the preset NTSC Pulldown removal capture setting within Final Cut Pro and this has successfully brought the material in at the desired 23.98fps.
The problem that I’m having is that there are visual artefacts on the footage, that are not there when played from the camera through a TV. I am getting a lot of banding appearing, especially round brightly lit red areas. For example part of the video is of a flamenco dancer, the trim to her skirt is red and every time she moves you can visably see that it appears jagged top to bottom over the red. This also appears when the camera tracks past a red umbrella leaning against a wall and also a red lit lampshade.
I’ve investigated all the avenues I could think of but am coming up blank. I am experienceing a similar probvlem with some 60i footage that was shot at the same time, this has been brought in at 29.97fps.
Any advice greatly appreciated.
Thanks Dave Linton
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5 Replies
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Are you viewing externally on a video monitor? If not do that because what you see in the Canvas is just a proxy of what you really have there. If you still see the problem externally, post back.
Jerry
Apple Certified Trainer
Author: “Jerry Hofmann on Final Cut Pro 4” Click here
Dual 2 gig G5, AJA Kona SD, AJA Kona 2, Huge Systems Array UL3D
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Hi Jerry,
Thanks for your response, I’m not using a video monitor as it is on my home kit but will take your advise and check it at work.
I have exported a sample movie from Final Cut Pro and checked that back in quick time player where the problem is still visable. Would quicktime work the same way as the Final Cut Canvas, basically should I not trust what I am seeing in Quicktime either?
Thanks for your help
David
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QT at 100% size should look much the same as an external monitor… Actually the Canvas set to 100% size will show the real deal too. But a computer display still isn’t the “final word” here, an external monitor is the final word…
Check it out externally, then post back…
Jerry
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True 23.98 doesn’t buy picture quality at all… FWIW… if you are delivering for TV consumption, and your timeline will end up being under an hour, I don’t see the point of removing the pulldown…You have to get back to 29.97 on a TV set… if you’re working with a LONG sequence that changes, and if you’re printing to film in the end it changes too… but otherwise there’s little point in working with a 23.98 sequence. Maybe save some disk space is all.
Also make sure the added pulldown that FCP will ad is set to 2:3:3:2 so it matches what was actually shot at 29.97. DV cameras don’t actually shoot 24 fps.. they shoot 29.97 and add that pulldown pattern…
Jerry
Apple Certified Trainer
Author: “Jerry Hofmann on Final Cut Pro 4” Click here
Dual 2 gig G5, AJA Kona SD, AJA Kona 2, Huge Systems Array UL3D
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Sometimes when shooting in 24p, if an object is passing too quickly through the frame, you will get that awful banding. Pans and motion within the shot have to be slow-moving. Because of the pulldown system, you’re actually loosing a few frames each second. If the movement is quick, this might be why you’re getting the banding effect.
Dave Prinzbach
Bridges TV
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