I had to shoot a concert the other night and I ran across an issue that i’ve never encountered before. I was getting banding from the artificial lights. I’m sure i’m not the first to deal with this…but maybe it has just never crossed my radar. Now before you jump up and down and tell me that’s what fluorescent lights can do…listen to my scenario. I was in a concert setting…so fully dark, and only stage lights were on. The stage lights were typical modern LED par lights. Kind of like this one. (Not that exact model, and I certainly do not endorse the product…but that was the easiest link to show an example photo.)
The lights were changing colors based on the song and music as usual. In my viewfinder I was seeing banding that moved across the screen. I adjusted my shutter speed to try and find a speed that removed it and nothing. I tried shooting the different shutter speeds and it always photographed the banding. The catch… ONLY with electronic shutter! If I used even a standard shutter with electronic first curtain (anti-shock zero) the banding would disappear! I still saw the issue in the viewfinder, but the pictures would be clear. Only fully electronic shutter modes captured the banding.
Why is this ONLY with electronic shutter? Can someone explain this? I lost a few good shots experimenting and trying to figure out what was going on since this did not respond like usual fluorescent. I’ve never had LED lights do this before. In fact, I shoot with LED lights all the time in still and video work. Often I use electronic shutter in the studio as well and i’ve never had this before. Very weird. Any one have experience with this??