How do you spot fake Zeiss binoculars?

To spot fake Zeiss binoculars, examine their details and compare them to photos of authentic examples of the same model. Counterfeiters often miss small details. For instance, the focus knobs may be the wrong size or shape, or screw hardware may protrude in areas where they should be flush. Checking the serial number can also be beneficial. On Zeiss binoculars, you can usually find it along the hinge, below the right eyepiece or between the tube and the left hinge. Research your model to find out where the serial number should appear. If your binoculars have the serial number somewhere else, they may not be authentic. Cross-referencing the serial number with information shared on trusted online resources can also help you identify a fake. When in doubt, consult a knowledgeable expert, such as a certified appraiser or experienced dealer. On 1stDibs, find a selection of Carl Zeiss binoculars.