Well, I thought of that first, but since I have been shooting these venues since 2004 and NEVER ran across this problem, I freaked! LOL! Is it that this camera is just "super" sensitive to LED and Fluorescence light sources? Shooting Canon's 5D Mark III, I do not get this problem... Weird? I just checked the camera in a controlled room with Tungsten and LED sources. Both were fine and most importantly, consistence. The same with those fluorescence screw in replacements... 95% of the time I strobe the locations, but I was lazy tonight and it "BIT" me. Just wanted to see what the camera could do... I guess I'll be back to carrying both Canon and Fuji and those strobes! LOL... THANK you so much Trenton! Stellar work on your site! Follow the LIGHT...