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March 20th, 2006, 10:08 PM
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#1 |
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Major Player
Join Date: Apr 2005
Location: Fort Dodge, IA
Posts: 221
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David: Technical explanation needed
Hello David,
I know at one point you briefly explained what type of pull-down happened when you mix footage of different frame rates within a timeline. I do not recall, or can find the thread, so I would like to ask you again. What really happen when you place 1) 30P footage on a 24P timeline; 2) 30i footage on a 24P timeline; and 3) a 24P footage on a 30P timeline? I am in the middle of a project that will require mixing some footage of different frame rates/progressive and interlaced, so your expert opinion on this area and best work-flow suggestion will be really appreciated. Thanks, Luis Otero |
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March 20th, 2006, 10:22 PM
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#2 |
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CTO, CineForm Inc.
Join Date: Jul 2003
Location: Cardiff-by-the-Sea, California
Posts: 8,095
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Avoid it if possible as you will get frame blending. For 30i in 24p use a tool like DVFilm or Magic Bullet to process it first -- fields blended on a progressive roject looks bad. For 30p into 24p or visa-versa the frame blend is OK for many sequences -- but it can make the image look softer. The is not too much that can be done, although I did have pretty good results once using Twixtor to convert 30p to 24p.
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David Newman -- web: www.gopro.com blog: cineform.blogspot.com -- twitter: twitter.com/David_Newman |
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