THIS CAN WORK FOLKS. READ THIS FURTHER FOR HOW. Usually works for me with Mountain Lion 10.8.3 on Mac Mini (2.3 GHz Intel Core i5).
Using a Creative Labs Webcam Vista. Product ID: 0x405f Vendor ID: 0x041e (Creative Labs) amongst others. The secret here is not to bother usinge the horribly unstable and non-working Macam.app to do anything!. Just install these drivers (specifically the Macam.component) and then go straight to using your cam with Quicktime 7.x. (Don't forget to set it to your camera in Quicktime 7 preferences first.) Process that works: Install all Macam v0.9.2 software as normal.
Launch Macam only once to initialize the component drivers and then quit it and never use it again. Restart your computer.
Then use Quicktime 7.x ONLY to use your webcam live. Macam.app will only take a snapshot and does not any longer support live video under the current OS. Macam when launched will also seize access to the camera so Quicktime can not use it after Macam is launched, so don't launch it.
Just use QuickTime to leverage the drivers that Macam installed which still work!!! The problem with this is you can not adjust the camera feed for color saturation, brightness, etc.

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THIS CAN WORK FOLKS. READ THIS FURTHER FOR HOW. Usually works for me with Mountain Lion 10.8.3 on Mac Mini (2.3 GHz Intel Core i5).
Using a Creative Labs Webcam Vista. Product ID: 0x405f Vendor ID: 0x041e (Creative Labs) amongst others. The secret here is not to bother usinge the horribly unstable and non-working Macam.app to do anything!. Just install these drivers (specifically the Macam.component) and then go straight to using your cam with Quicktime 7.x. (Don't forget to set it to your camera in Quicktime 7 preferences first.) Process that works: Install all Macam v0.9.2 software as normal. Launch Macam only once to initialize the component drivers and then quit it and never use it again. Restart your computer.
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Then use Quicktime 7.x ONLY to use your webcam live. Macam.app will only take a snapshot and does not any longer support live video under the current OS.
Macam when launched will also seize access to the camera so Quicktime can not use it after Macam is launched, so don't launch it. Just use QuickTime to leverage the drivers that Macam installed which still work!!! The problem with this is you can not adjust the camera feed for color saturation, brightness, etc.