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These 8300 sensors use normal pixels when reading out the image from the sensor to the image buffer for download. From what I've been told they shift the image down the sensor and read it out from the bottom so if you don't use a shutter you get a vertical white line down the image from bright stars as the image moves down. They also tell me that binning is done on the sensor and so if a group of 4 pixels totals more than the well depth of the pixel it's put in, it will overflow. You can see it happening on a qhy9 when you expose to daylight in higher binning modes. It overflows into the overscan area rendering it useless for calibration. But luckily we only really need to expose to daylight to set the gain.
The 8300 has a well depth of 25.5K. It's the gain setting that multiplies it up to 65K odd.
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