I mean infrared remote.
Here original:
https://store.canon.se/canon-rc-6-wireless-remote-control/4524B001/
There are also dozen alternatives and DYI projects.
https://www.doc-diy.net/photo/eos_ir_remote/
If your cams are close to each other, maybe you just need an off-shelf remote for 10€ and by pressing the button all cameras will be triggered. I don't know your setup, you should be more elaborative.
Here original:
https://store.canon.se/canon-rc-6-wireless-remote-control/4524B001/
There are also dozen alternatives and DYI projects.
https://www.doc-diy.net/photo/eos_ir_remote/
If your cams are close to each other, maybe you just need an off-shelf remote for 10€ and by pressing the button all cameras will be triggered. I don't know your setup, you should be more elaborative.
