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Wedding / Event Videography Techniques
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Old January 7th, 2006, 05:00 PM   #1
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Someone must know?

How do you make smooth good looking slow motion? I see these sample wedding videos on the internet with tons of slow motion but how does it look on a TV? Mine looks jumpy, unless I deinterlace or deflicker, but then I loose image quality. What are your methods? Should I just ditch premiere for slow motion?

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Old January 7th, 2006, 05:32 PM   #2
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You should do a search on the Filmlook/Methods boards here, the topic has been discussed many times.

Good luck!
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Old January 8th, 2006, 04:14 AM   #3
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grab a hvx20 and overcrank.... ;)

actualy the above statement rings true, but i once detailed how to get good smooth slo mo, (and also explains using fields as references for progressive output... ) using vegas
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Old January 8th, 2006, 04:53 AM   #4
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The thing is to start off with footage shot at the default shutter speed Joe - 1/50th or 1/60th sec NTSC). That way each field carries on where the last left off, and you capture everything that happens in front of the camcorder.

If you're shooting with raised shutter speeds (perhaps unintentionally because of the camera''s settings in bright light) then your slow motion program will have less information to work with, as less time will have been recorded to tape.

Premiere can be good, and can be helped if you copy and paste a slo mo section to a higher video trach, displace it by it one or two frames from the original, and reduce the opacity to about half. Try another displaced track above that - at about 1/4 transparency, and experiment.

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Old January 8th, 2006, 09:49 AM   #5
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There are a few ways to do slowmo.
Often one can use "frame blending" but this can soften the image. How it looks can also depend on the percentages/frame rates you use in the slowmo.50% might look good but 51% or 49% may not.

There's also various "optical flow" methods. They create new frames rather than blend them together. The result tends to look cleaner. It's sort of a fake overcranking. Some filters that do that include Boris Continuum Complete and Twixtor and even Compressor 2 (on the Mac). I have BCC but I've found problems. It uses an algorithm with various parameters to detect motion to build the new frames. There are times when movement speed of an object changes or objects pass over each-other and you end up getting an ugly "water ripple" effect. The result is playing with settings and rendering again. I find this frustratingly time consuming even on a fast computer.
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