How to determine the authenticity of online camera lens shop?

To determine the authenticity of online camera lens shop, it is necessary to comprehensively judge based on product anti-counterfeiting labels, appearance details, and sales channels:
Anti counterfeiting label verification
The outer packaging of genuine camera lenses is labeled with anti-counterfeiting labels, which can be verified through the following methods:
QR code scanning query: Scrape open the 16 digit anti-counterfeiting code on the label and use your mobile phone to scan the code to verify the information.  ‌
Visual identification: Observe whether the label has the characteristics of "pinhole imaging technology" and "homography technology" (applicable to some models).  ‌
Visual detail inspection
Focus on observing the engraving of the lens mount, the integrity of the packaging, and the condition of the accessories:
The genuine lens mount has clear and visible brand name engraving (such as the accurate engraving position of Canon EF lens mount), while counterfeit products may have blurry engraving or positional deviation.  ‌
Check if the packaging seal is complete. Starting from April 2025, the new version of Nikon's packaging seal will use special technology, while the old version can be identified through the official website.  ‌
Selection of purchasing channels
It is recommended to purchase through the brand's official website or authorized flagship store to avoid third-party channel risks. For example:
Canon official website provides anti-counterfeiting query entrance and genuine product verification tutorial
Nikon's official website clearly indicates the update time of anti-counterfeiting labels (the new version of labels will be implemented from April 1, 2025) and opens up query links