Jump to content




Photo

Of Frame Rate and Time Base


  • Please log in to reply
2 replies to this topic

#1 Vivek Venkatraman

Vivek Venkatraman
  • Basic Members
  • PipPipPip
  • 102 posts
  • Other

Posted 22 February 2016 - 08:24 AM

Hey,

 

So I am facing a small problem on a project I recently shot on the Sony A7s 2.

 

The film is a combination of 24 FPS shots as well as some 100 FPS shots - the issue is that with every 100 fps shot the time base in the camera changes to 100 as well.

Now my editor is stuck with 2 different time bases of 24 and 100 respectively and claims that it is a problem to edit such footage as AVID sets one timebase for the entire sequence ?

Somehow I remember testing this out on adobe premiere and it worked fine..

Is there a work around for such an issue ?

Will there be a problem for me in the conforming process ?

 

Thank you for your help :)

 

 


  • 0




#2 Satsuki Murashige

Satsuki Murashige
  • Sustaining Members
  • 3081 posts
  • Cinematographer
  • San Francisco, CA

Posted 22 February 2016 - 04:09 PM

In Premiere you can select a new timebase for an individual clip by right-clicking on it in the media browser and selecting:

Modify>Interpret Footage>Assume this frame rate [23.976].

It will help if you separate the media on your hard drive into a 23.98fps folder and a 100fps folder. That way, when you import the 100fps folder you can 'select all' and change the clip properties all at once instead of one at a time.

Don't know if Avid can do this but in the worst case scenario, just put all the 100fps footage on a 23.98 timeline in Premiere, reset all the clips to 23.98, then transcode to a codec of your choice (Prores, DNxHD, etc.) and just deliver those.
  • 0

#3 Vivek Venkatraman

Vivek Venkatraman
  • Basic Members
  • PipPipPip
  • 102 posts
  • Other

Posted 22 February 2016 - 06:00 PM

Thanks Satsuki

 

Thats helpful


  • 0


Ritter Battery

Aerial Filmworks

Paralinx LLC

CineTape

Technodolly

Visual Products

rebotnix Technologies

Broadcast Solutions Inc

Tai Audio

Glidecam

Rig Wheels Passport

Pro 8mm

Willys Widgets

Abel Cine

The Slider

CineLab

Zylight

Tai Audio

The Slider

Pro 8mm

Technodolly

Broadcast Solutions Inc

Willys Widgets

Abel Cine

Paralinx LLC

Rig Wheels Passport

rebotnix Technologies

Visual Products

CineTape

CineLab

Zylight

Aerial Filmworks

Glidecam

Ritter Battery