Shooting with an Arri 1.2K HMI Fresnel, looking at the scope the blue channel was waving at me.
We were shooting 45-degree shutter angle, at 24 frames per second.
Gaffer put the HMI on "flicker-free" but the banding still continued. We tested different frame rates and shutter angles along with setting the ballast at 60/50Hz and "Flicker-free", but it still banded.
I ended up shooting at 172.8-degree shutter for that particular shot because I couldn't get the lamp to cooperate with the camera settings.
Anyone else experienced this? I assume it was a wonky ballast as I have used the 1.2K Par with no issues on the same camera settings. And I can't believe the Fresnel would be all that different than the Par in the ballast department.