Hi

what's the difference between "Camera Body No." and "Serial Number" ?

how can i change "Camera Body No." ?

what i mean:
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1 >exiftool -serialnumber test.jpg
2 Camera Body No. : xxxxxxxxxx
3
4 >exiftool -serialnumber=yyyyyyyyyy test.jpg
5 1 image files updated
6
7 >exiftool -serialnumber test.jpg
8 Serial Number : yyyyyyyyyy
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see there is a little difference between line 2 and line 8 after executing the same command

any help would be appreciated!