Using a video security camera as a webcam?

Question

I have a video security camera that I would like to use as a web cam.
Who makes a good (composite) video to USB converter for this purpose? Note: this is NOT a digital camera. This is an analog video camera.

Answer 1

There is now a digital webcam (about US$16 or NT$500 in Taiwan, like V-Gear), which already have SENSOR for movements. Check for this 'sensor' in specs when you are looking for a webcam.

Instead of looking for USB converter and other things, just buy like above webcam for your security purpose. It's really worth buying for...