Camera Guide: A7S - Avid


Note that this guide focuses on post-production knowledge that is relevant to using this camera.

For the full camera manual from the manufacturer, see the very bottom of this page.

The files recorded on the A7sii are in XAVC-S format and use MPEG-4 AVC/H.264 compression.  The MPEG-4 AVC/H.264 video codec requires a lot of processing power for real time playback, so it is suggested that you transcode your footage before editing to reduce rendering time and drain on the processor. See the steps below for how to transcode.

For Production


For Post Production

Starting a Project

  • Open Avid Media Composer and start a new Shared Avid Project.
  • Navigate to the Settings tab in the Project Window and open “Media Creation.”
  • Select the “Import” tab.
  • Select your desired resolution (#1). Standard HD footage can be converted to DNxHD 115/DNxHR SQ.  Then select your drive from the drop-down menu (#2).
  • Select “Apply to All” to make sure that all media created within your project is saved to your drive at this resolution.


For exact data rates as compared to Apple ProRes, check out the following sites:

Linking Your Media

  • Create a bin for your media, right-click inside it, and choose Input > Source Browser.
  • Navigate to the "PRIVATE > XDROOT" folder on your hard drive, not your card and select it.
  • In the bottom left of the Source Browser window, select "Link" instead of "Import". (#1)
  • In the bottom right, select "Link".  Select the Target Bin the media will load into. (#2)
  • It may take a while, and Avid may appear to freeze, but give the program time and all of your clips should appear in the target bin.


Transcoding Your Media

  • The linked clips you just created are linked to the original camera files. In order for smooth editing within Media Composer, you must transcode these clips to an editing-friendly Avid codec.
  • Select all your linked clips, right-click and select "Consolidate/Transcode."
  • Check the bubble beside "Transcode." (#1)
  • Select your hard drive in the "Target Drives" box. It should be the same drive you selected in Media Creation. (#2)
  • Select the appropriate video resolution. It should be the same DNxHD resolution that you set in Media Creation. Check that your settings match those in this box. (#3)
  • Select "Transcode." (#4)
  • Depending on the amount of footage that you’re bringing into the program, this step may take a while.
  • New clips will show up in your bin with the file suffix “.new.01.”
  • It’s good practice to separate your linked source footage and your new Avid video files into separate bins.


Additional Resources

Using Source Settings in Avid

Adding a LUT in Avid

Adding a Custom LUT in Avid