VariCam is a bran name associated with the specialized Panasonic video cameras that are mostly used to imitate the look and feel of motion picture cameras. They have been used for many feature films. VariCams' main feature is that the framerate can be varied from 4 frame/s to 60 frame/s, offering flexibility in creating rapid or slow motion effects. As a point of reference, film has traditionally been shot at 24 frames per second, while NTSC video uses 29.97 frames per second. Therefore, VariCams can be used for high end video and film production. Their relatively high initial cost inhibits purchase, since a typical VariCam can cost between US$45,000 and US$70,000. However, their low cost in use, compared to shooting on film, has made them popular among independent filmmakers, and they are often available to rent from professional film camera rental companies.