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filming with TV in background, unable to eliminate banding
hello,
Let me vent first: HELP!
I am using the HVX200 to shoot a scene that has a TV going on in the background and I have done some preliminary tests, but am completely unable to eliminate the bands that show on the TV screen, and this is with sychro-scan! I have even fiddled with the shutter speed.
What am I missing?
Also I am filming with the TV behind the camera, throwing off blue light- it still emits electronic strobing/flickering that is unnatural. Is it better to duplicate this light?
Thanks..
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2 Replies
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Regarding the banding, you won’t be able to eliminate it completely. But you can position it. When in synchro scan mode, you’ll notice as you adjust the rate the band will move up or down on the tv screen. Position it where it’s least noticeable – usually the very top or very bottom.
As for your 2nd shot, this is achieved with a flicker control hooked up to a light. If you don’t have one or can’t rent one (I’m not sure where you’re located, but a grip or efx house would carry it), then experiment with light-blue bulbs (having transparent, colored glass – where you can see the filament) and have someone quickly wave objects in front of it for the effect. Be sure your wattage is low.
That said, what I just described would work if there are other lights on in the living room. If all you’re counting on is the glow of the TV on the actors faces while they watch it in a darkened room, you need to rent the flicker control.
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Usually a fixed speed of 1/60th (in the US) will get rid of the flickering/banding in a TV. You normally have to use the syncro scan to get rid of the banding in a computer monitor.
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