The problem of Sony-sensor's effective bit-depth

[shuwei666]

Based on your analysis,this Sony sensor seems a bit odd. I noticed it is a 14-bit depth sensor, but if that's the case, its black level should be closer to 512. However, according to your analysis, 128 is what allows for correct image output, which suggests that you might have used a 12-bit mode for saving. In other words, the effective bit depth of this Sony sensor's RAW data is actually 12 bits, right?

Originally posted by @shuwei666 in #12 (comment)