@nomad, thanks. I sorted the problem. Just switch camera over to NTSC, and now the flicker is gone in both the 1/50 and 1/60 mode. Strange that. In PAL it was there in both the 1/50 and 1/60 so had to choose 1/40 but in NTSC both the 1/50 and 1/60 work no probs.

@driftwood Not true, FCPX plays the Cluster v3/v4 footage back just fine. Don't underestimate it.

I can use the 30 mb/s , class 10 for Quantum 9b settings ? I installed "EOSHD Unified Patch" and it is very noisy in the shadows, before was 66 mb/s GOP3 , I was pleased with the level of noise and dynamic ranges .

@thoughts2uk A lot of the Quantum settings also have very good 720p60. As in this old chestnut.

Is Cluster v4 pretty reliable in 60p?

@thepalalias any recent tests???

@rajamalik It will be great in less detailed scenarios, however why do you think I left Sedna at Q20 / AQ1? Because in higher detailed scenes the Quantisation scale will rise to greater variations in Q - this has been discussed many times before - the greater the difference in Q between one macroblock to another adjoined will show up artefacts.

@kazuo Probably not good enough card by the sound of it. It should be fine on cards showing Extreme or greater than 30M/ps

@manakiin Lookin sweet. :-)

wow it's been a really long time since I came down here and now there's a "Quantum 9b updated & adjusted with Sedna adapted Matrix???

Can someone explain this one to me? or how this even works with me just knowing that there was Quantum 9b and Sedna Q20 as seperate releases.

@driftwood - "Its important to remember, both Cluster v4 and FlowMo v2.02 will stop recording if things get too taxing."

Regardless of peak bitrate settings, the AVCHD encoder is indeed subject to a variety of failure patterns when stressed by brightly lit, high-detail subjects. Its reliability margins may also be reduced when shooting with Lumix auto-focus lenses, particularly in AFC and OIS modes, which require the camera to continuously readjust lens operation.

With Flow Motion v2, I was determined to eliminate the possibility of the encoder silently degrading the quality of video clips by continuing to operate in Fallback Mode in extreme conditions. In my FM2 thread, I documented how this can occur in ordinary circumstances, even with unhacked firmware. For my purposes, I would much rather the camera stop recording than produce a coarsely encoded video file. On a practical video shoot, bad takes occur routinely for any number of reasons, and a rare camera glitch is not catastrophic. What would be far more disturbing is if I had to second-guess the image quality of a completed take, and be forced to examine all of my footage with Stream Parser to verify that it contained no technical flaws.

In Flow Motion v2.01, I improved the reliability of PAL and NTSC FSH and SH modes with technical adjustments that reduce quantization quality by a visually imperceptible amount only in extreme conditions - typically situations of intense contrast and overexposure that most photographers would avoid. I consider this an acceptable balance of "soft failure" in exchange for increased protection against hard failures. Among all the GH2's video modes, however, 720p60 SH mode is the most prone to reliability issues, both hard and soft failures. Although it would be possible to make this mode virtually bulletproof, I couldn't justify degrading its image quality to that point, for the sole purpose of insuring that it could not fail on rare occasions in extreme conditions.

In demanding situations where absolute reliability is required, I've provided a high-quality 720p alternative in FM2's 60Mbps H mode, which also spans reliably with 30MB/sec Class 10 SD cards. For those using 95MB/sec cards, both H and SH 720p modes will span reliably in either PAL or NTSC frame rates.

Lee is absolutely correct. Once again I reiterate, I am not prepared to lose quality to accomodate guarantees of 100%. I have spent many days preparing matrices for each setting and 720p has been one of the hardest taks.

There is a new variatiion in the continuation of the Cluster series supporting standard 12/15 GOP (coming out shortly) which will be more accomodating to slower cards...

@shrigg Not the case if your are filming a performance and you need to have the whole thing. Worst if you are filming something and you cannot make restart for various reasons - camera is set to a further place, you are part of the performance,its a very quiet moment and other similar scenarios...it has happened to me and it is simply not fun. So unfortunately highest quality and 100% reliability in gh2 are not very compatible.

@jazzwalker Top behaviour! Well done.

@andyvia1968 Very good work, I love the slightly over exposed look of the music video it really works.