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Re: Recording TV screen results in banding lines...

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Jonathan Ziegler
Re: Recording TV screen results in banding lines...
on Jun 17, 2015 at 1:20:24 am

Has to do with the shutter speed of the camera (set to 1/60) and the refresh on the TV (also set to 60Hz). May need a line conditioner to smooth out the rough edges so you always output the right amount of voltage and to be sure you are right at 60Hz (most household electrical lines vary a lot more than you'd think). Couple that with rolling shutters on DSLRs. Consider also, there are little LEDs that glow bright white behind the other color pixels on your TV which will also contribute to the banding or funky glow from TVs, neon signs, and fluorescent lighting.

I wouldn't recommend shooting it on a DSLR, but you could put some dots on the screen and use that for tracking the footage in post - one on each corner so you can track the footage and insert the TV stuff in post.

Save early. Save often.

Jonathan Ziegler

http://www.electrictiger.com
520-360-8293


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