neilwood32 wrote in post #9367178
Gym lighting can be really bad due to the cycling of the flourescent lights. You can expose part of the cycle depending on your shutter speed (60hz in the US IIRC).
PP is probably the only way to cure it other than very careful choice of shutter speed.
Yes, 60Hz here in the U.S., which means the light intensity cycles at 120Hz.
I always found that 1/120, 1/60, and 1/30 sec work best, so the light averages out over a whole number of cycles. Slower than 1/30 sec, it no longer matters much. Shorter that 1/120 sec and you'll get completely unpredictable light, unless you sync your shutter with the power line (requires a special adapter).
For you types with 50Hz power, make that 1/100, 1/50, and 1/25 sec.