How about to think about fluos that cause this, not GH2 or hack?

Well, yeah the lights were available light fluos which I know can cause flicker, but I've shot with the same set up around fluorescence before and not had the problem. Don't get me wrong about this I love the hck and have great success just wondered what could be the cause of this. Also, the viewfinder would on occasion cut off for a brief moment while shooting. Any thoughts. Thanks so much for the replies.

Gotcha. Thought so. Thanks!! By there way, you guys do wonderful work here. It truly is amazing.

I had a flicker issue once on a scene i did a few weeks back. The flicker came out of nowhere. I was confused. The gh2 was hacked. Don't know if that was the problem or not. But all I did was turn the camera off for like 2 minutes and turned it back on. No more flicker. Weird. That only happened once though.

That's the flicker I mentioned in another thread, i believe. I've seen strange flickering, especially in neutral color walls and things when the frame is underexposed even in tungsten lighting. When moved frame by frame I would see some frames would have either a strange tint in the noise or the noise would form some kind of block pattern but isn't the same as macroblocking at all.

here it is:

password: weirdflicker

May be you won't notice it unless you turn on HD or download it.

@sherwood So there's nothing we can do but to use HBR (25p) in order to completely avoid it? :( Really sad to hear that.. I was about to return my camera.. I thought it was broken or something, 'cause I never saw something like this on a 7D shooting at 24fps...

There's another flickering-related mystery with my GH2. People complain all the time about the flickering they get when they shoot at 50p/60p and their shutter speed is not in sync with the frame rate (and the lightsource is a fluo). Well.. call me weirdo but I like the strobe flicker that appears when pulled down to 25p -in my case-. The point is that I'm unable to obtain it...no matter what I try. Before pressing the rec button I can see it.. but once it's recording.. the flicker disappears... it's like if the camera compensates the difference between frame rate and shutter speed..somehow. It randomly appears though, but just for a few seconds.. and only if I point the camera towards the lightsource. What am I doing wrong? Is this fact also related to PAL users?

Any other voice that can contribute with these mysteries? Any comment will be appreciated.

Sorry Vitaly if this isn't the right place to post this.. I've been here for a long time but never dared to post a thing. And sorry you all for my english, I'm Spanish.

@laaldeapro "So there's nothing we can do but to use HBR (25p) in order to completely avoid it?"

Welcome to the crazy world of international TV/video and film standards! This is a thorny and complex issue that you'll just have to work around because the electrical system in Europe is not about to change soon. The effects from different light sources vary, so you'll need to experiment. In general, I have found that incandescent lamps (including quartz halogens) are much less of a problem than flourescents and high output industrial lighting. I'm not sure about LEDs -- perhaps someone else can share their experience. In Europe we've traditionally just shot at 25fps (the TV and video standard) and made a -4% adjustment for 24fps cinema projection. But as was already pointed out, the implementation of 25fps in the GH2 ("HBR" mode) is not as good as the 24fps (23.976 if you want to be precise) "Cinema" mode.

@laaldeapro Flickerless using FSH 1080i modes. But stick to 50 ss for 24p.

@tetakpatak: the theory doesn't quite hold in my testing. In 50Hz countries @ 23.976, really the only SS where you DON'T get flicker is 1/50. Just set it and forget you have the control; work around exposure issues with more/less light and aperture.