Originally posted by falconeye At the end of the day, DR in video is fully determined by the subsampling sparsity factor, full well capacity and readout noise. The sparsity factor can be determined independently if it isn't public. The DR properties as discussed in the Zacuto video though are almost entirely determined by what you can do to the camera's tone curve.
well, I have to say... I don't aggree with what you're saying
for a start, I don't know if you watched the full shootout and read the background info, but they asked the manufacturer of each camera to send a technician, who was the one operating the camera in the tests - the artists were there designing the tests, so that they make sense and tell them what they want to know, but the cameras were operated by technicians sent by the manufacturer (in case the manufacturer declined the offer, they put an experienced shooter in place)
and then: I'm not sure what you're complaining about in the DR tests in particular
what I care about is this: what's the brightness difference between the brightest highlights and the darkest shadows that can be recorded at the same time, without clipping at either end, in video mode, with each camera?
you're right that this depends mostly on what you can do with the tone curve, not so much on what the sensor can capture
but, after having used some of these cameras, I'd argue that what the sensor can capture is completely irrelevant: all I care is what ends up in the footage, and that seems to depend even more what you can do with tone curves than on full well capacity, etc (which is also important, of course)
it must be what they care about too, since that is what they seem to have tested
I'd call that "DR in video mode"