It appears that a class action lawsuit has been filed in California against Sony. It alleges that the serial number stickers on Sony lenses are prone to falling off. While this doesn’t affect the operation of the product – unlike the other class action over dead A7 III shutters – it does prevent the owners from taking advantage of the warranty and getting repairs when needed or participating in product recalls.
Essentially, the serial number falling off makes the lens worth less because if it ever dies, it’s useless. And that’s kind of a big deal, especially on expensive high-end G Master series lenses. The plaintiff, Joseph Mursharbash claims that he has experienced exactly that situation as it’s simply a low-quality sticker that’s prone to falling off. And during a product recall of the Sony 16-35mm f/2.8 GM lens, his serial number was nowhere to be found.