Please run tests.
Test 1.
- Lens cap on it
- film for 30 minutes, at 24fps in CinemaDNG.
- The next day, same room temperature (19-20°), film for 30min, at 30fps in CinemaDNG.
compare the heat of the camera and the last two DNG files from both shots.
Result, you'll see it doesn't rush (FPN/Noise) any more at 30fps than at 24.
Test 2.
- Lens cap on it
- film for 30min, at 24fps in ProRes LT.
- The next day, same room temperature (19-20°), film for 30min at 30fps in ProRes LT.
compare the heat of the camera and last second of both shots.
This makes the camera less warm than in Test 1, there is also a minimal difference in noise, and this is because Test 1 requires more Mbit/s to be written to SD, and the heat generated by other components also affects the sensor.
The sensor is not from Blackmagic's own, but from
http://fairchildimaging.com and the manufacturers say quite clearly that the sensor does not get hotter than (<) 0.8W, that is its final limit at 100fps. But I don't think anybody would recommend this 100fps, but 48, 50 or 60fps.
I don't think the sensor is the problem, so it's not really about the heat of the sensor. Why and why the 50/60fps are not available for BMPCC, there are MORE negative speculations than positive ones. Some say it's deliberately not unlocked because BM refer to the BMMCC. I regard that as negative. And what happens here? Exactly that, it is a logical and simple reference to the other camera of BM and does not have to be called negative! I'm just saying that the "sensor gets hotter at 48, 50 or 60 fps" and true is that the temperature rises by a minimum of 0.x! (x=<8 ).
Much more it has something to do with writing on the SD card, which causes more heat, therefore my recommendation and please to output this over HDMI or in lowest codec quality - maybe also ProRes Proxy or if possible in h264/5? - this is an additional wish, but combined with the wish 48, 50 or 60fps from a BMPCC. It would also be possible to allow 48 - 60 fps only for 5-10 minutes.
There are POSSIBILITIES, if BM wants that or if there is the ability to optimize the codes for it.
If users come here to tell us it's not possible, then I say no, technically seen it's possible ONLY IF BM WILL and I ask why not.
One thing is clear to me, the sensor can do more FPS. The Spartan 6 can also handle this, it can evaluate more than 60 images in 1080p.... and if you don't believe it, it's based on your own beliefs and not on the SPECIFICATIONS of the manufacturer.
I hope it is understandable.