For almost all images that don't contain sky and with indirect light, the sensor can run comfortably with mid scale exposure (+1 exp comp) which provides a noticeable increase in IQ but requires contrast correction because of the gamma curve already applied to raw data.
---------- Post added 08-10-19 at 07:01 ----------
Originally posted by parinya-ekparinya
Rather than an extended ISO range, I would prefer extending the range of native ISO. Having ISO 64 for a Sunny day is useful for me.
Native iso64 means that you only get the best image quality when there is a lot of light and less image quality in all other cases. A better a sensor is a sensor with higher native iso such as iso200 base iso, faster shutter speed with same DR and same SNR is better for shooting hand held is more situations. So what does matter is DR, SNR and best possible exposure.
---------- Post added 08-10-19 at 07:10 ----------
A sensor with 14bits DR at base iso64 is not as good as a sensor having 14bits of DR at iso100 or 14bits DR at iso200. Newer BSI sensors have higher base iso, and the actual exposure times are faster than indicated by cameras so that the camera user think he's got low iso values...indicated iso 64 values are fake.