I don't know how to get around the webcam issue, but you can still use them as cameras. Sony still includes a manual viewfinder. If 2 are the same model, you could make a stereoscopic photography rig.
Personally I would create a aerial photography rig with them, could be quite fun. With three of them you would get some awsome shots. There is a how to here bit.ly/axBLJH that you could use for the trigger mechanism.
Don't forget to post it to here though along with the photos you took.
You can also change the USB mode, which may give you better functionality. Look at websites like dpreview. Com, where many cameras have the full menu tree listed, so you can navigate to the right option.
Nikons can be controlled entirely via USB, so maybe the Sony ca as well. Then the PC can tell it how often to take shots, and you can do a nice time lapse rig, fairly easily.
You may want to have a look at gphoto2 library, to see if your camera models are supported for photo shooting via USB command (connect the camera and run "gphoto2 --abilities"). It appears that most Panasonic cameras do not support anything other than downloading images.
Sometimes I think of connecting a small portable monitor to a perfectly good camera and putting the camera on a poll just to get unusual shots from a vantage point 8 to 10 feet in the air. Sounds like you are half way there. As for a security camera - USB cameras are cheap and leach power off the USB port.
Sounds a lot easer then using one of these cybershots.
Well, the only way (that I know of) to use a Cybershot as a webcam (which you can then use for surveillance ofcourse) is this: Plug it in with the wall-adapter (webcam mode doesn't work on battery, sadly). Plug the video out of the camera into the analog video in of your PC (USB won't work for this) Boot up your PC, start the software you have chosen to use with the camera's, and pick Video In (or an option named similarly) as the video source. If you don't have an analog video in on your PC, you can always get a PCI capture card to get you one.
But you'd probably have to get one for each camera you want to use, and even then I don't know for sure if that will work out. You can also just get some replacement screens, I think you will be able to find them on ebay, and put those in. If you don't necessarily need live feedback from your surveillance system (if only recording it for later use is fine) you can just place the camera's somewhere, plug them into a socket nearby, and let them record video all the time.
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