Preventing screen flicker when videotaping a computer monito

1. nobody
   Member

   
   I have shot some footage of a computer monitor for a tutorial and playback of the footage shows a lot of screen flicker or scan lines. What steps can I take to reduce or eliminate this so that the playback is clean?
   
   Thanks in advance.

   Posted 8 years ago #

2. nobody
   Member

   
   It sounds as if you have a shutter problem. First you can try to find access a Sony camera that has the patented "clear scan" system and that should do it or; white balance on the monitor itself and set your exposure carefully in an attempt to match the scanning frequency of the monitor. If your camera is a later model it should work out fine for you for you

   Posted 8 years ago #

3. nobody
   Member

   
   Hi,
   
   I don't think you can do much to fix the video if you already filmed it and it has screen flicker. You can mainly keep it from happening next time. I think turning off electronic image stabilization helps. I think a flat screen or laptop type monitor won't have this problem either.
   
   Greg

   Posted 8 years ago #

4. nobody
   Member

   
   Taping from a tv or monitor is not a simple process. You might try a search for previous discussion on this subject. As mentioned, once filmed there's not a whole lot of fixes. De-interlacing ahould help and one of the programs I use (Magix MEP) does have an anti-flicker filter.

   Posted 8 years ago #

5. Kingkool682
   Member

   
   Use a slower shutter speed next time will help reduce the flickering and scanning. You might be able to get away using a little compositing. Capture a screenshot by hitting the "Prt Sc" button usually up there by F12. Open up MS paint and paste the picture where you can then save it as a jpeg or bmp. Then import the image into your footage and resize to look like it is fitting in monitor frame. Next, you'll need a mouse icon that you can animate moving around and clicking on things.
   
   There is also a freeware program called Wink, which does something like this but the output is to flash,html, PDF, or an EXE... but it's worth a look http://www.debugmode.com/wink/
   

   Posted 8 years ago #

6. nobody
   Member

   
   Here's another idea. Last time I looked there were adapter boxes to convert the monitor output to composite video, for about $89, as I recall. With one of these, you could just send the composite out to the line-in on the camcorder. Some Dell laptop computers have this capability built in. I would think this would look better than anything you could get off the screen--no reflections, etc. The only possible drawback I can think of is that there may be a monitor resolution limit.

   Posted 8 years ago #

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