Hey Pete,
I am currently working with a few clients on creating flexible multicam set-ups for recording and streaming.
If all your recordings are post-produced, you might want to consider using your cameras to ISO record on internal media, rather than overloading your MacBook and/or Pixelbook with data.
I am a fan of Elgato, although there are other vendors that offer something similar. But they do seem to have everything in one place:
https://www.elgato.com/uk/en
One little annoying thing, is that Elgato uses third-party software, if you want to capture streams/recording to a specific drive, or for other fun.
OBS – Open Broadcaster Software, is free to use.
I am still learning it, but know many professional AV people who are using it.
https://obsproject.com/
If you have budget, then Blackmagic ATEM Mini and/or SDI Pro ISO can do the job, including ISO record your cameras.
https://www.blackmagicdesign.com/products/atemsdi
Just one word of warning, I have a few years back been on a shoot where Camera Channel 3 on the ATEM mini (HDMI) went black – on investigation, it was suggested that the power-supply was near that channel and when getting hot, it interferred with the signal.
Hopefully Blackmagic has resolved that in newer models.
We were running it for 10-hours, so it did get “pushed”.
But, if you are recording in a small room with little air-circulation, and many lights, you may want to look at how you deal with heat.
Hope that this helps?
Atb
Mads
elgato.com
Elgato
A leader in audiovisual technology for creators and WFH pros, Elgato builds premium webcams, microphones, Stream Deck controllers, capture cards, and more.