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QuickTime not recognising external camera

S

SULion1

macrumors newbie
Original poster
Six months ago, I successfully connected an external camera to my iMac using a Thunderbolt port and recorded video input on QuickTime (ie. QuickTime recognised my external camera). Now, even though the System Information shows that the device is connected through the Thunderbolt port, QuickTime is not giving me the option to connect to the external camera. I am using Tahoe 26.5 and have tried closing all other video apps, tried to give permission to QuickTime through the Privacy & Security settings in System Settings for camera (QuickTime is not an option because it purportedly is automatically given access to cameras), rebooted in safe mode and put "system-override legacy-camera-plugins-without-sw-camera-indication=on" into Terminal and other supposed fixes, all without success. Can anyone help me?
 
Last edited:
Is the camera connected with a Firewire cable? If so, Firewire is so dead in macOS 26. And that's it.
 
galad said:
Is the camera connected with a Firewire cable? If so, Firewire is so dead in macOS 26. And that's it.
Click to expand...
Hi Galad, yes, the cable from the camera is first generation Firewire (4-pin 400) then converted to second generation Firewire (9-pin 800) then adapted to Thunderbolt 2 then adapted to Thunderbolt 3 so that the connection into the iMac is Thunderbolt 3. Does that make any difference? If not, and macOS 26 is simply incompatible with the original Firewire cable, then should I go back to macOS 25 or whatever configuration I had when the set-up worked about 6 months ago?
 
galad said:
There is no Firewire support in macOS 26. Everything has been removed. You will have to use a previous version of macOS or something else.
Click to expand...
Thanks, Galad. I have found an old Mac (2011) which accepts the Thunderbolt 2 cable and recognises the camera in its version of QuickTime, so I have found a work-around. Thanks for your replies
 
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