I've checked my Meade LPI-GM Advanced (Touptek imx178 rebadge) and see a maximum value of 16k, which matches what you're seeing except that I'm using a 14-bit sensor. I see the same thing with my 14-bit Canon T7.

It seems to me that what you're seeing is normal, or at least, not a problem. I stack with siril so unfortunately don't know if pixinsight needs additional configuration to handle this. It is odd that you don't see this with the ASCOM drivers, though.

Thanks,
Ben

Read More...