>I was surprised to learn that Sony F3 MXF files are not natively supported by Davinci Resolve – am I mistaken?
No, I believe that is correct, you’ll need to rewrap the files as QT … this is not a transcode of the image data, you’re just changing the wrapper. The standalone application XDCAM Transfer and its successors (XDCAM Browser and Content Browser) can do this for you.
>A couple years ago there was a stand alone program called XDCAM Transfer that enabled encoding to another codec (ProRes) , but I haven’t been able to find it… does this still exist?
Yes, it still exists. You can download it from one of Sony’s professional support pages, here’s one:
https://support.sonybiz.ca/esupport
>It seems like the only way to transcode the to ProRes is to use Final Cut Pro with the XDCAM plugin or Adobe Premiere?
If you want to transcode then yes, you can do this in FCP or Premiere or a transcoding app, but there is no need to do so. Just rewrap.
Hope it helps
Andy