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Framerate question (29.97 to 23.98)

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Woody Brubaker
Framerate question (29.97 to 23.98)
on May 1, 2013 at 2:03:23 am

I know that this issue has been covered ad nauseum on the site, but I've swam through so much of it at this point that I'm exactly that: nauseous.

Here's my issue. I've got a lot of 23.98 footage (shot on a Canon 5D and converted into ProRes 422 at 1920x1080). This is the bulk of my material and so I'm trying to keep it as pristine as possible. I've also got a lot of footage from various sources that runs at 29.97. This stuff is like home videos ripped from DVDs and pulled from consumer cameras and off various places along the way. I'd like to integrate these as seamlessly as possible while keeping the footage I shot looking as good as it can.

What's the best practice for doing this kind of thing? I gather that it's not really wise to simply drop the 29.97 footage into a 23.98 timeline, but I'm loathe to lose my 23.98 footage to a 29.97 timeline. Any thoughts?

(I also have some footage that's been at 59.97, but I suppose that's a question for a followup.)


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Shane Ross
Re: Framerate question (29.97 to 23.98)
on May 1, 2013 at 3:46:57 am

Use Compressor to convert the frame rate...and the footage to ProRes. Use the FRAME CONTROLS in the INSPECTOR to set everything to BEST. And then wait hours for it to complete.

Obviously deinterlace it at the same time.

Shane
Little Frog Post
Read my blog, Little Frog in High Def


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Sophie Guerin
Re: Framerate question (29.97 to 23.98)
on May 1, 2013 at 4:31:34 pm

How can we desinterlace?


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Shane Ross
Re: Framerate question (29.97 to 23.98)
on May 1, 2013 at 5:17:17 pm

It's an option in the FRAME CONTROLS in the INSPECTOR.

Shane
Little Frog Post
Read my blog, Little Frog in High Def


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Woody Brubaker
Re: Framerate question (29.97 to 23.98)
on May 1, 2013 at 5:10:55 pm

Thanks, Shane. Followup: if i'm going to convert the 29.97 stuff to 23.98, should I select the option to set the duration 100% of the source file or "so source frames play at 23.98"?


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Shane Ross
Re: Framerate question (29.97 to 23.98)
on May 1, 2013 at 5:21:10 pm

[Woody Brubaker] "f i'm going to convert the 29.97 stuff to 23.98, should I select the option to set the duration 100% of the source file or "so source frames play at 23.98"?"

Yes. That should be the default setting anyway...leave it.

Shane
Little Frog Post
Read my blog, Little Frog in High Def


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Woody Brubaker
Re: Framerate question (29.97 to 23.98)
on May 2, 2013 at 2:00:49 am

Thanks, Shane. As it actually turns out, I have as much 29.97 footage as I have 23.98 footage and most of the 23.98 stuff is just talking heads/not a lot of action in them. Is there a reason I shouldn't (beyond preference) convert the 23.98 to 29.97? It seems like I could go either way...


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Shane Ross
Re: Framerate question (29.97 to 23.98)
on May 2, 2013 at 2:06:19 am

All depends on your deliverables. What frame rate will you be delivering? And will it be interlaced or progressive.

Converting 23.98 to 29.97 interlaced looks really good. 23.98 to 29.97 progressive? Looks bad.

Shane
Little Frog Post
Read my blog, Little Frog in High Def


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Woody Brubaker
Re: Framerate question (29.97 to 23.98)
on May 2, 2013 at 4:25:14 am

Going to the web with this stuff, though we're intending that it might one day make its way onto a DVD or something else (clients have high hopes someone might be interested in using it on TV someday). Thoughts?


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Shane Ross
Re: Framerate question (29.97 to 23.98)
on May 2, 2013 at 4:34:40 am

Go 23.98. Web loves Progressive, hates interlaced.

Shane
Little Frog Post
Read my blog, Little Frog in High Def


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Joseph Owens
Re: Framerate question (29.97 to 23.98)
on May 2, 2013 at 3:33:52 pm

[Shane Ross] "Go 23.98. Web loves Progressive, hates interlaced."

The only way that 23.98 converted to 29.97 looks any good is 2:3 interlaced, and a web compression will take this away.

And besides, 6 fewer frames/sec reduces the file size and bitrate.

jPo

"I always pass on free advice -- its never of any use to me" Oscar Wilde.


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Woody Brubaker
Re: Framerate question (29.97 to 23.98)
on May 2, 2013 at 4:38:40 pm

So we're saying definitely convert the 29.97 stuff to 23.98 then? What about for future uses of this stuff (say, heavens forbid, someone wants to put it onto a DVD or screen it somewhere outside of the client's laptop)?


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Shane Ross
Re: Framerate question (29.97 to 23.98)
on May 2, 2013 at 4:54:14 pm

DVDs play 23.98. All those DVDs of movies you own? Those are shot 24fps...on DVDs at 24fps. And yes, playing on a laptop...same as the web. Progressive. Only TV sets do interlacing.

Shane
Little Frog Post
Read my blog, Little Frog in High Def


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