Sony is proud to introduce the a7S III, a powerful camera-recorder that’s designed to meet emerging needs in 4K production. The new XAVC HS recording format uses HEVC/H.265 encoding to achieve twice the compression efficiency of AVC/H.264 encoding, for superior image quality and smaller file sizes.
The a7S III is the world’s first camera to offer 4K XAVC HS Files shooting. It can record 4K 120p/60p/50p/24p MP4. The XAVC HS format is not compatible with many programs. You may have problem to play, edit or use these format on PC. So we can’t edit Sonya A7S III .mp4 footage with Avid Media Composer.
DNxHD is a video codec intended to be usable as both an intermediate format suitable for use while editing and as a presentation format. So we can covnert sony a7S III MP4 to DNxHD for using in Avid Media Composer.
Acrok Video Converter Ultimate is the first choice for you to make smooth videos for editing in Media Composer. It makes it easy to convert Sony a7S III XAVC HS and XAVC S footage to DNxHD codec on Windows 10 and macOS Big Sur. Below is the quick guide for those who have a hard time editing Sony a7S III MP4 files in Avid Media Composer.
Free download Sony a7S III to Avid Media Composer Converter
How to convert Sony A7S III MP4 to DNxHD for editing in Media Composer?
Step 1. Load MP4 files to Acrok software
Run Acrok Video Converter Ultimate as the best Sony a7S III to Avid Media Composer Converter on PC. Click the “Add file” button to import .mp4 files from the a7s III.
Step 2. Choose DNxHD MOV output format
Click the “Format” option, and choose Editing Software > Avid DNxHD 1080P (*.mov) as output format.
Tip: To get the original video size, just click the “Settings” button and choose “Orginal” from the video resolution drop-down box. Tick the checkbox for “Merge all files into one”, and the Sony a7S III Video Converter will join and combine the MP4 video clips into a single file as output when export mov format.
Step 3. Convert MP4 files to DNxHD for Avid
At this point, you can change the output filename or output path if you wish. If you feel satisfied with your options, Just hit the Convert button to activate Sony a7S III MP4 file to DNxHD conversion.
When all conversions completed, you’ll get a pop-up notice. Just click “Open” button, you can fast find where your converted files are saved.
You’re done. Now importing and editing Sony a7S III MP4 files in Avid Media Composer is flawless.
The output videos are compatible with other Non-linear editing system like Final Cut Pro X, iMovie, Premiere Pro, After Effects, Vegas Pro, DaVinci Resolve, etc, to import the 8K/6K/4K/1080P videos without compatibility issue.