RonPepitone I was advised that the correct pixel size for the 1600 mm is 3.76, not 3.8 as reported in the specs?
That camera uses this Panasonic sensor:
https://www.gophotonics.com/products/cmos-image-sensors/panasonic-corporation/21-215-mn34230
From the dimensions, 1656 pixels for 17.6472mm width, I get a pixel size of 3.79 µm. So yeah, 3.8 µm.
There are ZWO cameras that use Sony sensors with 3.76 µm pixels (ASI2600, 6200 and 533), but the ASI1600 does not use a Sony sensor.
Chen