This is from the dpreview review indicating the cause of banding (my bold). This suggest that if you don't try to push the dynamic range you can control the banding....
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In most circumstances the Z7's image quality will be remarkably similar to that of the D850 (as you might expect). However, it's not quite fair to say it's the same.
Key takeaways:
In principle, dynamic range is comparable to that of the D850: one of the best performances we've seen.
However, striping and banding (caused by the addition of on-sensor PDAF) means the usable dynamic range is reduced.
Dynamic range is the range of tonal values that a camera can represent, from the brightest recorded tone to the darkest usable value. There is, of course, an element of personal taste to this.
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In most circumstances the Z7's image quality will be remarkably similar to that of the D850 (as you might expect). However, it's not quite fair to say it's the same.
Key takeaways:
In principle, dynamic range is comparable to that of the D850: one of the best performances we've seen.
However, striping and banding (caused by the addition of on-sensor PDAF) means the usable dynamic range is reduced.
Dynamic range is the range of tonal values that a camera can represent, from the brightest recorded tone to the darkest usable value. There is, of course, an element of personal taste to this.