[mikeevans]

Can you provide some more details about what you needed to do to set up your RX100 III? I have the same camera and would love to do the same.

[romanhn]

Sure thing. Here are the specific items I ended up with:

  - Cam link 4K card: https://www.amazon.com/gp/aw/d/B09XXBTBYB
  - Dummy battery kit: https://www.amazon.com/gp/aw/d/B078PDCF7D
  - Micro HDMI cable: https://www.amazon.com/gp/aw/d/B08C2QMT4R

In terms of camera settings, I think the main ones were switching the file format to XAVC and turning off the display icons so they don't show when I'm on video. Might be worth going through https://www.sony.com/electronics/support/articles/00245829 and trying a bunch of these, even though the page is not exactly for the same camera.

After that just plug it in and it's recognized as a USB camera. One other thing I ran into was the camera kept losing settings after being turned off. Turns out there is an internal battery that got discharged after years of non-use. I think I used a micro USB cable with a running camera to get it juiced up.

Good luck!

[preya2k]

Or save yourself the cost and latency of the HDMI grabber and use it via gphoto2/v4l2 if you don't mind a little command line action. https://girishjoshi.io/post/using-dslr-camera-as-webcam-on-l...