GH2 Seaquake + Slow Motion Burst Patch for 95MB/s SDXC

so, at the moment the Sandisk 30Mb extreme III is good enough EXCEPT only for spanning? (i don't need that personally)
or is it unreliable with seaquake nonetheless? (which means that with any other new hi-end patches it's already not a good investment?)
putting aside the larger memory advantage..
 
Lesser class ten cards will record Seaquake - they will not span past four minutes, you must stop the take. As to the X burst, your times will be cut in half, for the minimums (3-4 seconds).
 
strangways said:
If you want to use the EX Tele mode, and/or the 80% variable speed mode, try Driftwood's Aquarius V2 on a Sandisk 30 Mb/s or 95 Mb/s.
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Ex Tele works fine with any burst resolution, even under max stress Iso 12800.

Kholi has shed light on a complication for first time installers (on a virgin gh2) that can result in values not being completely flashed by the firmware (this problem applies to any firmware, not just gh2-x).

To fix the situation, I have now included a 'clean slate' firmware in the original post. Now, first time installers should install the clean slate on their virgin gh2 before they install this or any patch.
 
Sage said:
Lesser class ten cards will record Seaquake - they will not span past four minutes, you must stop the take. As to the X burst, your times will be cut in half, for the minimums (3-4 seconds).
Click to expand...

thanks.
sorry, can you please explain more on the AQ3, or the new tests with AQ4 and what does it mean? and this "burst" thing?
 
roei z said:
thanks.
sorry, can you please explain more on the AQ3, or the new tests with AQ4 and what does it mean? and this "burst" thing?
Click to expand...

Sure.
AQ applies to quantization. Quantization deals with the roughness with which a spectrum of possible values is represented. If the 'steps' of color/luma a pixel/block of pixels can be limited to fewer, less data can be used to represent the same image (albeit without subtle beauty). The AQ affects a table in the encoder which specifies what variation of values can be used to represent given parts of the image (shadows, simple gradients, complex detail etc.). In ptool v3.62, VK implemented an auto adjustment of the table to keep all parts in balance while attributing more bitrate according to the original table's distribution. Before, the encoder would simply refuse to use more bitrate when there was plenty left to make the image more accurate. AQ was perhaps the biggest change VK has yet implemented, and required a lot of careful work on his part. It radically changed the image to be incredibly subtle per pixel, attaining a level of image quality that was never possible with simple hacks - a level of quality typically associated with cinema cameras. GOP also affects quantization, as I believe I frames are allowed superior quantization levels. AQ3 seems to be the point at which the image really transforms. A higher aq commands significantly more bitrate, and so requires a rewrite of patch params to allow it to improve image, rather than degrade it.
 
Sage said:
Ex Tele works fine with any burst resolution, even under max stress Iso 12800.

Kholi has shed light on a complication for first time installers (on a virgin gh2) that can result in values not being completely flashed by the firmware (this problem applies to any firmware, not just gh2-x).

To fix the situation, I have now included a 'clean slate' firmware in the original post. Now, first time installers should install the clean slate on their virgin gh2 before they install this or any patch.
Click to expand...

This is probably what happened with my first patch. That's a good idea, Sage.
 
roei z said:
Thanks again.
So, 95 Mbs it'll have to be ;)
and the burst? why it is called that?
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Burst takes advantage of the simple fact that when shooting a movie, continuous takes are needed for dialog at 24 fps, but slow motion shots do not (and unfold longer in a 24fps timeline). The gh2 data 'pipeline' is very limited and finicky for slow motion, and in order for a patch to record continuously with balanced buffers that will not overflow, the bitrate and AQ need to be set low. Too low. This leads to a lack of subtlety/color detail, more banding, and mud in the shadows. Its better than stock at low gop, but it can be much better. By allowing the buffers to reliably overflow, a burst setting lets you record at higher bitrate/AQ for a fair amount of time to allow the shot to unfold. Because the 64gb SDXC can put down track twice as fast as any other card, the buffers can be quickly emptied to allow for a longer flow of frames before overflow (7-9 seconds minimum).
 
Thanks so much Sage for all the valuable info you are sharing us.
Since Sandisk 64GB is so expensive, I can only afford two Sandisk 32GB 30mbps which is about $95 bucks.
What is the best settings for us with just the 32GB 30 mbps? Best 1080 24p with Ex Tele.
 
cam123 said:
Thanks so much Sage for all the valuable info you are sharing us.
Since Sandisk 64GB is so expensive, I can only afford two Sandisk 32GB 30mbps which is about $95 bucks.
What is the best settings for us with just the 32GB 30 mbps? Best 1080 24p with Ex Tele.
Click to expand...

Driftwood's seaquake or quantum will work fine, and allow continuous recording at 720p. 24p will not span past four minutes if you use less than 64gb SDXC. My advice: you have $95, you're half way there. Its best to just wait until you can buy the 64 sdxc, as that last 95 is like investing in an all new, more stable, and higher quality camera. Compared to the cost of the gh2, it is tiny and goes a long way.
 
fatpig said:
maybe some of you would like to know, the extrememory 32gb class 10 works flawlessly with driftwoods seaquake. and its a LOT cheaper. :) I posted a write-speed-chart over at personal-view.com if anyones interested. :)
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can you post a link, because i don't believe this is true. not that you're wrong, but i have the exact cards and the 720p doesn't record for more than 5seconds.
 
Sage said:
That's right. (PV user Jspatz has confirmed that all the speeds will do their predicted times under max stress and are fully stable)
The quality of Driftwood's Seaquake patch really impressed (uncompressed-like), and with the release of this high spec card that can keep up w/ the Gh2, its now possible to come close to that quality at higher speeds w/ reasonable burst times.

This particular combo of card and patch is the highest quality the camera is currently capable of (the mini scarlet).
The breakdown of resolution with the combo is this:

24fps - 1.9K - 57 minutes
30fps - 1.9K - 9 seconds
40 fps - 2.4K - 1 second (gh2's secret IMAX mode ;) )
50 fps - 1.3K - 9 seconds
60 fps - 1.3K - 7 seconds

(Keep in mind, these burst times are minimums at max complexity like high iso - at iso 160, you will experience superior compression/burst times)
Click to expand...

Call me stupid, but what do you have to do "in-camera" after applying this to actually be able to shoot at each of these

24fps - 1.9K - 57 minutes
30fps - 1.9K - 9 seconds
40 fps - 2.4K - 1 second (gh2's secret IMAX mode ;) )
50 fps - 1.3K - 9 seconds
60 fps - 1.3K - 7 seconds
 
I'm using the GH-X hack posted on this thread in combination with the new 64 GB sandisk. But I can't get 60p shots to record any longer than 2-3 seconds. Anyone else having this problem? Ideas?
 
Sage said:
...Because the 64gb SDXC can put down track twice as fast as any other card, the buffers can be quickly emptied to allow for a longer flow of frames before overflow (7-9 seconds minimum).
Click to expand...

Sage, when you say 7 to 9 seconds is that record time or delay or... please elaborate if you could
 
keep it moving Jay said:
Sage, when you say 7 to 9 seconds is that record time or delay or... please elaborate if you could
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i'm almost sure he's speaking of record time. this patch really falls short because even with the sandisk extreme 30Mb/s it records 4-5 seconds, which is why it's pointless to drop that much money on such an expensive card, such as the pro. this patch really doesn't make any sense. it's driftwood's 24p settings with an unusable 720p/1080i.
 
Car3o said:
i'm almost sure he's speaking of record time. this patch really falls short because even with the sandisk extreme 30Mb/s it records 4-5 seconds, which is why it's pointless to drop that much money on such an expensive card, such as the pro. this patch really doesn't make any sense. it's driftwood's 24p settings with an unusable 720p/1080i.
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I dunno, man. Six to seven seconds of slow-mo is a long time. At max quality, it could be worth it for some.
 
Pop Mechanic said:
I'm using the GH-X hack posted on this thread in combination with the new 64 GB sandisk. But I can't get 60p shots to record any longer than 2-3 seconds. Anyone else having this problem? Ideas?
Click to expand...

Are you sure it is a 95MB/s Sdxc?
You should have a 7 second 60p record time, minimum, when the codec is under max stress. If it is sdxc, what store did you purchase from? (b&h?)
Most importantly - is 24p spanning?
 
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