Originally posted by PinarelloOnly I do not know how you got to 100hz but it still is the lighting that is doing it.
If a hertz is one cycle isn't still 50hz then? Europe or not you still have to slow
down the shutter with fuorecent lighting, right?
Besides in the first video anyway it's horizontal banding I do not see any vertical anything.
I think you are refering to the stroboscopic effect of filming objects in fluroresent light, due to the interference of the shutter speed and the lamp light flicker ferquency.
That can normally give fluctuating lighting effects, banding off images captured off another screen etc.
If that would be the case here, the effect would be visible for all of the picture, wouldn't it?
Not just some high light area's, and the pattern would be a repeating pattern.
Both are not the case here, I've looked at the video some more, the pattern changes over time.
I still don't think it is light interference.
Also, the K-7 captures video at 30 fps, interfering with 2 x 50Hz pulsing light source would create a wave like flicker frequency of 1/30 second.
- Bert