The "measured ISO" of the GH3: Surprise, surprise

I agree that Panasonic did the right thing in their earlier cameras. But in what way does it make sense to change what they did on the basis of changes in sensor performance?

OOC jpeg shooters don't get one iota more headroom by lowering saturation in RAW. They only lose the ability to take full advantage of the quality of the sensor.

RAW shooters who know what they are doing don't gain anything either. They are not so badly hit as OOC jpeg shooters since they can compensate exposure properly once they are aware of how things work. Their only problem is that the OOC jpegs they have to rely on for in-camera review do not properly reflect sensor saturation.

The only ones who might benefit are RAW shooters who don't know how to handle highlight clipping properly, and therefore need a bit of hidden protection.