I mean somewhere higher up on that same page they even say:
It can be windowed down to achieve frame rates of 700,000+ FPS.
So not quite sure about what is correct here. Also i dont know how all the other Hardware inside the Camera will handle such framerates, if it even can. Even the 300+fps are in my opinion somewhat extreme to actually expect working well, as they not even bother to give an exact resolution for that. The Sensor probably CAN somehow push those kinds of Framerates in very ideal conditions and with a lot of finetuning on Hardware and software, and perfect timings and such. But to be a bit more realistic here, even getting 125kfps working somewhat reasonably well on the 2.1 would be huge.
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The "up to 125kfps" claim i find a lot more realistic, as they give a resolution for that, and the 1.4 has prooven that it can handle framerates like that, even if not without bugs.
For me personally i would allready be quite happy with something like 40-50kfps on the 2.1 working at least half useable.
I would still take the 125kfps without any question, if it works however.
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as for Saving and the H.264 Problems, i dont know if that is really an issue here. I think if the Camera will record to RAM, it should also (at least try to) save the Footage. Of course the H.264 Option for File Format shouldnt be touched when operating at such resolutions, because it probably will freeze, crash or do something else bad, but i dont see why the camera should have any problems when trying to save small resolution files to DNG format Footage, or in the Worst case just plain RAW Format and Convert on the PC later.
Main reason why i was asking about the 2.1 however, was to see if the Hardware overall was even capable of handling ANY more than the Current Max. Framerate, no matter how badly it does. If i remember correctly, I think i read somewhere that they had to change somethings about timings somewhere in the Camera to get the 100kfps working, when they first released that in that one Firmware version that had it. So, just because the Sensor can handle it, even if all the Other Hardware can keep up with it in theory, still doesnt mean, it will just work.
To be fair, i now also remember that main reason for the Framerate Limit was about the H.264 after you said that. So that would somewhat imply that the 2.1 will indeed run higher framerates.
This, and the fact that sanjay specifically said that those instructions are for the 1.4 and left the 2.1 untouched in his post.
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If i set my mind to it, and put enough time and effort into it, i will eventually figure out how to do this Mod on the 2.1
(i assume only thing to change on the Instructions above would be the Sensor Name? from what i understand, it basically just changes the Minimum allowed resolution to be smaller, and the camera then on its own figures out that it can run a lot faster, so that should be the only thing keeping it from doing that in the First place. Once that Min. Resolution Limit is gone, it should in theory just start recording when i tell it to. Getting the Footage off the Camera is an whole other beast to tame with the H.264 Limits and such, but even if i can just watch the Playback on the Internal Screen, i will still be able to figure out a lot more temporal Detail of what is going on, from the Footage. If it plain out wont save at all for some Reason, i can still just Hook up some Kind of HDMI Recorder and let the Camera Play back the Footage. So how to save the Footage is for now not really that much of a concern for me). But as i also allready mentioned above, i am not all that good with code and stuff and avoid command-Line stuff like this wherever i can. So, it would be nice to know if someone, who is more capable than me around code stuff, actually tries this on an 2.1; if it does work or not. Would potentially save me like a day or two at worst (This doesnt seem all that bad from Reading over it briefly, so might just be an Afternoon, but can end up taking me like forever if i get stuck somewhere).
