- Technology based horror film opening
- 'Unfriended' the movie
- Shot through the perspective of the computer camera
Rylstim - records your screen after you hit the ‘Start Record’ button. This will be useful for people who do not want to configure anything and just want a basic recorder. This program does not record sound from input devices like a microphone.
BB (short for Blueberry) Flashback Express Recorder- lets you use your webcam to record yourself while recording the activities that are happening on your desktop. After you have stopped recording, it creates an FBR file which can be edited with its packaged video editor.
Above is some of the computer software I researched that was free and all that was needed was a simple download. These software's would allow my group to record what is occurring on our computer screen as we physically click an icon etc. The other option we had was to record off a camera, facing it in front of the computer screen. We all quickly narrowed out this idea as when we would go to view the film we recorded there would be blurred lines and the camera would go out of focus quite a lot as we are recording another piece of technology.
Monitors and TV's typically have a set refresh rate - 50Hz and 60Hz are fairly common. This means that the screen is redrawn around 50 or 60 times a second. To the human eye, this looks smooth - it's fast enough to be almost unnoticeable.
Cameras, though operate differently from our eyes. If the frame rate of the camera matches the refresh rate of the screen you're looking at, it'll probably look fine. Usually, this isn't the case. The camera then could capture a partly drawn screen as one of it's frames, and then capture a different part of the screen in the next frame, etc.
Net result: It looks like it flickers (or you see moving black bars), since it does this very quickly.
The flicker is caused by two things:
1. A difference in the scanning frequency between the TV and the camera.
2. A difference in the way the phosphor dots are perceived between the human eye and the camera's image sensor.
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