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Old March 11th, 2010, 08:00 AM   #1
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HDlink to slow down footage 50p to 25p?

Hello, most of my work is PAL 25p, so conversion of 60p is essential, ive had alot of success with hdlink slowing down some extreme sports 60P footage shot with the hdhero camera, to 29.97, then doing a 30 - 25p to get ultra smooth slow motion source footage at 100% playback speed, i can then drop the 25p footage into my timeline at 100% speed and its smooth without interpolation or frame blending

The reason im asking this is instead of using hdlink, in premiere if i interpret footage at half the speed to get my slow motion, the minute i want to do a ramp up/down in speed it looses its position and wont go past the end point of the clip if it was 50%... confusing i know..., so its easier to work with already slowed down slowmotion footage first, and do a 200% speed up to get realtime speed.

I have alot of 50p 1280*720 footage from my 7d which i would like to use in premiere, i wondered if there was a 50p to 25p 50% slowmotion option available in hdlink? if not, what is the best suggestion to do this, other than put everything into after effects and re-render all the clips at 50% speed :) hdlink is so great for this!

thoughts/problems all appreciated
regards
Oliver
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Old March 11th, 2010, 10:03 AM   #2
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Hdlink supports 50 to 25p in the Rate Change control, just set the -50% slowdown.
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Old March 11th, 2010, 01:00 PM   #3
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Hi David,
If I am on a Mac and have Remaster how would i be able to do that? Or how would you suggest the best way to re-time 50p or 60p to 24p or 25p?
Thanks as always,
Ross
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Old March 11th, 2010, 01:15 PM   #4
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While Remaster on the Mac doesn't do it is one step (audio resampling in not on the Mac, we use an open source PC tools for that), you can converts in step one, and reload the CineForm MOV and re-wrap it will a new frame rate (losslessly.)
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Old March 11th, 2010, 01:30 PM   #5
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Hi
Thanks for responding so quickly. Really appreciate it.
So if I've understood you correctly.
I take, for example, a 720p 60fps file (h.264 from 7D in this case but thatís probably not relevant) and convert it to a normal Cineform file.
Then once its in a mov thatís Cineform I re-wrap it to a different frame rate?
Can you send me a link to find out how to do that? I haven't been able to find that out on your site.
thanks again
Ross
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Old March 11th, 2010, 01:43 PM   #6
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No I can't, that is Mac stuff, I don't us them. :) It is in Remaster somewhere.

I just looked,

Within Paramaters, under the output tab, set the output to "CF Rewarp" and then in the processing tab, enable frame rate change change and select the target speed.
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