So, this is an interesting one and not something I’ve come across before. But a British photographer we spoke to reports having had serial numbers in his Nikon lenses changed after sending them in to be repaired by Nikon Professional Services in the UK.

He says that Nikon told him they sometimes have to replace the part which contains the serial number. However, this may invalidate your insurance or future warranty when numbers no longer match up. Especially if Nikon isn’t providing any documentation for the new number or even telling you that it has a new one.

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