When used properly, hidden cameras are basically another form of security and surveillance cameras. They are, however, often used for other things that may be considered an invasion of privacy or immoral. Most hidden cameras are still or video cameras that are used to film people without their knowledge of it. Hidden cameras are often used for entertainment purposes such as television shows. The most common uses of hidden cameras however, include security cameras in stores and banks; however, they can be installed and used anywhere. Various types of film and digital cameras can be hidden from people. If you are using them in a small, enclosed area, you should make sure that your camera is quiet.
Hidden cameras that just show images can be useful, but cameras that are attached to some type of recording device are a better way to go. Hidden cameras could range in price from about $50 to $10,000.