Although there is a certain price difference between parallel imports and licensed products, after-sales service has also become a problem, so there is actually no essential difference. Once you buy a camera, you must have an invoice receipt. On invoices and receipts, merchants must write the body number (not the case number, because there have been cases where the machine and box numbers are wrong, but this situation is rare on cameras. ), as well as the signature or official seal of the merchant, to ensure that you will not be deceived.