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Interlacing Footage
I’m shooting some promotional material for a website and am using my Nikon D7000. I have it on a steadicam and while I’m happy with the footage for the most part, during pans and following a person walking around the test footage has a lot of flicker. I imagine this is much in part to the 30p frame rate. I don’t want a film look but more of a television, marketing look.
Can I interlace the footage and will that help. I am converting the footage to pro-res through compressor. While I have the option to “de-interlace” the footage there doesn’t appear to be an option to “interlace” it. Is this possible? Would this help smooth the motion and have the footage seem to “flicker” less when moving? Thanks.
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6 Replies
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You can’t interlace footage shot progressive. Describe the flicker, and post the exact settings you used to transcode the footage to ProRes.
Jerry
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You also should never put interlaced footage on the web… only progressive.
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Don’t know exactly which settings you mean. In “Compressor” I chose Apple Pro Res 422 for progressive. Here is the compression summary:
“Apple ProRes 422 for Progressive material
Description: Apple ProRes 422 10-bit video with audio pass-through. Settings based off the source resolution and frame-rate.
File Extension: mov
Estimated file size: 772.62 MB
Audio: multi-track passthrough
Video Encoder
Format: QT
Width: (100% of source)
Height: (100% of source)
Selected: 1280 x 720
Pixel aspect ratio: Square
Crop: None
Padding: None
Frame rate: (100% of source)
Selected: 29.97
Frame Controls: Automatically selected: Off
Codec Type: Apple ProRes 422
Multi-pass: Off, frame reorder: Off
Progressive
Chroma filtering enabled
Pixel depth: 24
Spatial quality: 50
Min. Spatial quality: 0
Temporal quality: 0
Min. temporal quality: 0”The file started as a 135 MB .MOV quicktime movie from my digital SLR.
The flicker I am referring to is most visible while making a turn with the camera on the steadicam. I think the answer is to turn more slowly and try to incorporate stationary tripod shots whenever possible. I could also pull out the dolly and retain motion, but smoother and with more control. It’s just a pain to lay out the tracks and bring additional gear. At 30p the jerkiness is not as bad as 24p. I just wish the Nikon D7000 offered 60p in 1280×720 mode. Any ideas?
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[Richard Johnson] “The flicker I am referring to is most visible while making a turn with the camera on the steadicam.”
How are you monitoring your ProRes video? Not on QT Player I hope? Because it doesn’t run at speed.
David Roth Weiss
Director/Editor/Colorist
David Weiss Productions, Inc.
Los Angeles
https://www.drwfilms.comPOST-PRODUCTION WITHOUT THE USUAL INSANITY ™
A forum host of Creative COW’s Business & Marketing and Apple Final Cut Pro forums. Formerly host of the Apple Final Cut Basics, Indie Film & Documentary, and Film History & Appreciations forums.
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Watching through final cut pro. I’m just viewing test footage right now. I was actually impressed with how much better 30p did compared to 24p. It was noticeable and I didn’t think it would be. Anyway, I think I will be able to get by, I was just hoping their might be some post production help since my camera doesn’t offer higher frame rates.
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ya, 30p will still have some of that stutter on pans.
Chris Tompkins
Video Atlanta LLC
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