Things to consider.
The ST10 has better well depth and is NABG.
Are you mostly imaging galaxies?
If so think how many are big enough to need the bigger chip. I can only think of 3 in the southern sky.
How often will NABG be a problem?
How many potential targets have bright stars in the same field?
Will you also want to use the camera for science images? Ie photometry.
The NABG is better for this as it has a more linear response.
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