Latest post Tue, Aug 4 2015 3:56 PM by Pitchapa. 14 replies.
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  • Mon, Mar 19 2012 6:11 PM

    • Dan
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    Import MXF files as true slow motion.

    Hi all, very quick question - I have some rushes coming in tomorrow that will be shot on a canon c300 at 50fps (PAL) - It shoots as MXF files and I've just done a quick test and Avid doesn't like the 50fps footage (imported into a 1080 50i project), but it's ok with the 25fps stuff.

    What's the best way of getting this overcranked footage into Avid so that it plays in slo-mo. I know how to do it with quicktime and console commands but how about with these c300 MXF's?

    Cheers

    Symphony 8.5.3 Windows 7 pro 64bit. Intel Core i7 2600k. 16GB RAM. Nvidia Quadro fx5500. [view my complete system specs]
  • Mon, Mar 19 2012 6:26 PM In reply to

    • Kristina
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    Re: Import MXF files as true slow motion.

    Hi,

     

    have you tried importing it in a new 50p (or is it 25p?) project and open this bin again in your 50i project? 

    Best regards,

     

    Kristina

    several z800 and xw8600 Nitris DX, MC v.5.5.3, Win XP Prof SP3, ISIS-5000 16TB with Force 10 Switch 10Gig, several MOG S1010 ingest servers, several EVS... [view my complete system specs]
  • Mon, Mar 19 2012 6:40 PM In reply to

    Re: Import MXF files as true slow motion.

    Import it as you would import any other 25 fps footage, because the camera is creating files meant to be played back at 25fps.  In film, we used to call it "overcranking."  True slow-mo in the camera is creating by shooting twice (3x, 4X, etc.) the frames during the same one-second interval.   When you play it back at the normal (i.e. 25) frame rate, you get slow motion.  If the camera is set up properly, MC should treat this as any other 25fps footage, except that the picture will appear slower.   If you import it at 50fps, it will appear as normal speed, defeating the purpose shooting it in slow-mo. 

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  • Tue, Mar 20 2012 1:10 PM In reply to

    • Dan
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    Re: Import MXF files as true slow motion.

    Thanks for the replies guys,

    I'll try your suggestion Kristina - the rushes should be here later today.

    Terry, I should clarify - the footage is being shot at 50fps to get smooth slo mo. Now if it was Quicktime I know how to force Avid to import Quicktimes at native frame rate (i.e. 50fps) using the console, but I don't know the equivalent for importing MXF.

    Currently my 1080 50i project will not import the 50fps footage at all for some reason (it states that the frame rate of 50fps is not compatible with my project settings of 25fps, even though its a 50i project) - it may be that I need to create a 50p project as Kristina suggests.

    I know that with Quicktimes if you try and import 50fps footage it out it only imports it at 25fps (if that's what your project settings are) thereby dropping half the frames.

    Cheers guys, I'll keep trying and report any success.

     

     

    Symphony 8.5.3 Windows 7 pro 64bit. Intel Core i7 2600k. 16GB RAM. Nvidia Quadro fx5500. [view my complete system specs]
  • Tue, Mar 20 2012 1:16 PM In reply to

    Re: Import MXF files as true slow motion.

    Dan:
    if it was Quicktime I know how to force Avid to import Quicktimes at native frame rate (i.e. 50fps) using the console, but I don't know the equivalent for importing MXF.

    Try using AMA, after typing 'SetAMAQTForcedFrameRate true 25.00' into the Console. After AMA-linking to it, transcode.

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  • Tue, Mar 20 2012 1:41 PM In reply to

    • Dan
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    Re: Import MXF files as true slow motion.

    Hi Job,

    Ok, so that console trick will work with MXF format files too? I had assumed it would only work with Quicktimes as that's what the typed command suggests. I'll try it, thanks.

    Symphony 8.5.3 Windows 7 pro 64bit. Intel Core i7 2600k. 16GB RAM. Nvidia Quadro fx5500. [view my complete system specs]
  • Thu, Mar 29 2012 4:40 PM In reply to

    • Dan
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    Re: Import MXF files as true slow motion.

    Hi all,

    Picking up this thread as the project had to go on hold for a while. Started again just now but I'm not having any luck so far.

    Just to refresh the memory -

    I have Canon c300 footage shot at 720 and 50fps. It records in the MXF format. I want to import the footage into a 25fps project so that it plays in slow motion. I've tried 720p25fps and 720p50fps projects and it doesn't like the footage. Simply put, it either imports at normal speed (i.e. not slo-mo) or refuses to import because the 'import frame rate (50fps) does not match the edit rate (25fps).

    The only way I've figured it out so far is to transcode the MXFs to QT in Sorensen and then use console command 'IgnoreQtrate true' to import. This works but is an extra transcode (from native MXF to QT and then back to MXF when importing) and the quality seems to suffer (it looks a bit jaggy).

    Anyone know what type of project I should start and how to import the MXFs as slo-mo? There may be an 'ignoreframerate' console command for MXFs  but I don't know it. Seems quite difficult to get this stuff in!

    Cheers

    Symphony 8.5.3 Windows 7 pro 64bit. Intel Core i7 2600k. 16GB RAM. Nvidia Quadro fx5500. [view my complete system specs]
  • Fri, Mar 30 2012 11:12 AM In reply to

    • Brian Suttie
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    Re: Import MXF files as true slow motion.

    Worked fine for us on a commercial last week.  C300 footage.

    Import your 720/50 in a 720/50 project.

    Go back to your 1080/25 project and open the 50 fps bin from there.

    Any clips you add to your 1080/25 timeline will automatically have a 200% motion adaptor added to them.

    To get them to play back at 25 fps just change that to 100%

    regards

    Brian

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  • Fri, Aug 24 2012 1:02 PM In reply to

    • ingofoertsch
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    Re: Import MXF files as true slow motion.

    HI there i ran into the same problem, but i cannot change the motion adapter to 100.

    how did you manage this?

     

    thanks ingo

     

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  • Fri, Aug 24 2012 3:15 PM In reply to

    • siencs
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    Re: Import MXF files as true slow motion.

    Ope the motion effect editor and change the speed value to 100%.

    MC Symphony 8.8.5 on MacPro 3GHz 8-Core Xeon 12GB RAM, OS 10.12.6, Blackmagic Ultrastudio 4K MC Symphony 8.8.1 on iMac [view my complete system specs]
  • Fri, Aug 24 2012 4:14 PM In reply to

    • jef
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    Re: Import MXF files as true slow motion.

    You might need to press the "Promote" button in the effects tab as well.

    Jef

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  • Fri, Aug 24 2012 5:59 PM In reply to

    • cuervo
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    Re: Import MXF files as true slow motion.

    alternatively, you can import the 50fps footage directly into a 25p project. when you put it on the timeline, you'll notice a green dot, meaning it has had a speed effect automatically applied and you need to render it out. yep, if you open the speed effect editor, promote the footage, change the speed to 50%, you'll get the desired slomo footage without creating new frames. Be aware that the speed factor you selct must be precisely 50%. this has worked, for me, when bringing 30fps footage into a 24fps project, altho' the speed factor is different.

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  • Tue, Jul 28 2015 7:39 AM In reply to

    • Pitchapa
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    Re: Import MXF files as true slow motion.

    I tried the AMA, but the transcode chages it to 25p. What am I doing wrong? Is there another step I am not seeing on the AMA transcode? 

    I also try the console command IgnoreQTRate True. It works, but must standby to click "proceed" as it asks warns each clip will lose sync. Anyway around that? I have  200 clips.

    I have OS 10.8.5 Avid MC 7.

  • Wed, Jul 29 2015 7:46 PM In reply to

    • Dan_B
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    Re: Import MXF files as true slow motion.

    These days you want to be linking (previous to 8.4 called AMA) this material, in the new 8.4 version you can change the transcode setting to force clips to play at project or clip frame rate.

     

  • Tue, Aug 4 2015 3:56 PM In reply to

    • Pitchapa
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    Re: Import MXF files as true slow motion.

    OK, thank you. I will try that when I get 8.4

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