photograph lighting signs

Started Mar 20, 2013 | Discussions thread
OP b4cktr4ck Regular Member • Posts: 161
Re: photograph lighting signs

I remember reading this a while ago from Ken Rockwell

[..] On the other hand shooting indoor sports this drove me completely insane until I figured this out. I was shooting at ISO 3,200 and 1/500 of a second. Exposures and color were very different from frame to frame and I had no idea why until I realized that the lights by design were flickering 120 times a second from the 60 Hz power. There is no way around this other than to retrofit the arena with high frequency ballasts for all the lights or otherwise replace or overpower the arena's lighting. We use high frequency ballasts for our HMI lights in Hollywood so we don't get beats with the 24FPS film cameras, but its expensive and not done in stadiums. Good luck!

can this be the same reason why the sensor cannot capture what we see for these kind of signs?

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