7D green banding under fluro lights

Hi all. Just got my 7D and just love it. However, today I did some shooting on a squash court - indoor, fluro lights and noticed a really horrible green band when shooting video and green tinge on some every other still when shooting pics. I have since been able to replicate the issue in a different environment but again under fluorescent lights.

Has anyone seen this???? I happens in video mode as well (will upload an example to youtube later) and it is really noticeable.

Here is an example (these were taken at 8fps and were one after the other):

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Well known phenomenon. It's due to the interaction between shutter speed and the cycling of the fluorescent lights.

Swamp the scene with flash, or shoot at n/(2 x c) where n is an integer and c is the number of cycles per second (Hz) that your mains power provides. For a 60Hz country that would be:
1/120, 1/60, 1/40, 1/30, etc.

Fluorescent lights "cycle" through and although the lighting appears uniform and even to the naked eye... at fast enough shutter speeds, a camera can capture the light flicker between higher and lower intensity, as well as different color outputs.

The trick is to either shoot at shutter speeds of 1/60s or slower, or get better lighting, or shoot with flash (though not sure there are many flashes that will let you shoot at 8fps).

http://photo.tutsplus.​com …luorescent-tube-lighting/

not banding... just bad lighting.

and also not 7d specific. It could be any camera be it canon, nikon, digital, or film.

jwcdds wrote in post #11136016
Fluorescent lights "cycle" through and although the lighting appears uniform and even to the naked eye... at fast enough shutter speeds, a camera can capture the light flicker between higher and lower intensity, as well as different color outputs.

The trick is to either shoot at shutter speeds of 1/60s or slower, or get better lighting, or shoot with flash (though not sure there are many flashes that will let you shoot at 8fps).

http://photo.tutsplus.​com …luorescent-tube-lighting/

Not quite. The speed has to be an integral factor of twice the power period.

there was a thread made recently where a guy was shooting a martial arts team's group shot and got the same green effect because of the fluorescent light.

Thanks all for the quick reply. I knew about adjusting the shutter speed to avoid the blinking effect of fluro lights etc but I had never seen the stationary green/orange banding effect before, especially on stills. I guess the reason is because I just upgraded from a 400D and that isn't really known as a low light performer. So if I ever shot in those conditions, I used a speedlite.

As promised, here is a video of this happening. Good to see it in motion and good to learn something today!

http://www.youtube.com​/watch?v=3kr17HaW7eo