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Computer screen appears to be flickering
Hello everyone, I’m new to this forum and not sure if this is the correct forum to post to. I just produced my first short film and this is also my first editing project. I heard the director say “We’ll fix that in post” several times and so far have not figured out how to go about doing that. We shot a scene where a character is sitting in front of a computer typing. The screen looked normal to me but through the lens and on DV it looks like the screen is in motion. It is constantly refreshing. According to everyone not editing, I can fix this with a filter or something. Has anyone out there done this before?
Thanks,
Neobe -
3 Replies
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Yeah. You can fix that with a camera adjustment when you’re shooting. Ask that director. That’s the kinda stuff he should know about. It’s called clearscan I think, and basically it’s a setting on the camera where the shutter is adjusted until it matches the frame rate of the monitor. But you can’t pan the camera during the shot usually. A better solution is to set the monitors at 60khz, and set the camera at 1/60th shutter speed. You might get a very slow roll that you can often shoot around. The camera can be panned with this setting.
I don’t know how you fix this one in post. But I’m sure it can be done. Might take as long as reshooting, but you can say you fixed it in post. Keep your fingers crossed. Maybe there’s a magic filter.
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[Bret Williams] “But you can’t pan the camera during the shot usually. A better solution is to set the monitors at 60khz, and set the camera at 1/60th shutter speed.”
Well, an even BETTER solution is to shoot with an LCD computer screen.
No flicker problems at all.In post, well that will be a challenge.
Not having seen the shot, I can’t tell you for sure, but “fixing it” it may be as simple as creating a new image for the computer and adding it as a “picture-in-picture”… up to a complex set of PIP, garbage mattes, and “animating” the PIP to move with the shot (not to mention there may be flickering from the screen visible on the actor’s faces.
As Brett says, its almost always better to re-shoot to eliminate complex problems than to “fix them in post”.
Some things CAN’T be shot without problems, but using an LCD computer screen on-set will fix THIS one.
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Thanks for the information. I’ll see if I can find out how to adjust the camera and if the site is available for a reshoot. We had a really hard time finding an office to shoot in and I think this is the only location where a reshoot might not be possible.
Thanks,
Neobe
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