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I often shoot indoors for interviews with my D90, but I often get a sort of strobing with it. Check out the attached picture, to help you see it on a picture, I added red marking, so simply look on the curtain on the right of that.

strobing effect when filming with D()

My best explanation so far was the type of lighting in the room, which is common in most offices, similar that was is in the picture:

Office lighting

Does anybody know what is going on? Similar experience? Solution? Explanation?

Thanks for any input.

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2 Answers 2

up vote 2 down vote accepted

You seem to be on the right tracks, fluorescent tubes are notorious for flickering and CMOS sensor is read row-by-row in video mode.

Try shooting under window light and/or use your own lighting, e.g. a LED video light. Try shooting so there's not much office visible in background, you won't be able to light it all.

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I m glad you confirmed my theory, won't have to go nuts next time. thanks @Imre –  denislexic Sep 9 '11 at 11:03
    
this may also be helpful: en.wikipedia.org/wiki/Rolling_shutter –  Chard Feb 19 '12 at 23:30

And try not to move the camera. I think the manual talks about that. Maybe also try PAL vs NTSC to see if the difference in fps changes the flicker.

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