I have an HP laptop which have a built in web camera. It has low visual clarity. So I like to use my digital camera as web cam. Is it possible. If yes, how? which software is suitable for that? camera have usb cable.
If your camera has a webcam mode you should be able to use it as any other webcam. Just change the device in the options of whatever program you use. Of course you have to activate that mode on your camera first. If it doesn't have such a mode, you can't use it as webcam no matter what software or operating system you use.