Verify the serial number on the lens matches the box and the warranty card.
The safest way to buy, especially for high-cost glass, is to ensure the listing says . buying camera lenses from amazon
Items might have been returned by others who swapped them for older models, a scam that is not always caught immediately by warehouse staff. Verify the serial number on the lens matches
Test autofocus, aperture functionality, and image quality (check for softness) immediately. especially for high-cost glass