Any coating produced at North American Coating Laboratories is completely guaranteed for the "Life of the Lens." This includes defects in the vacuum coating itself.

When returning a pair of lenses for a warranty redo, include the original control (envelope) number, month, and year that the job was coated. Providing this information will ensure a warranty redo
at no charge for your account.

If you have any questions, please contact our Customer Service Department between the hours of 8am to 4:30pm EST Monday through Friday (Eastern time) at (866) 216-6225(NACL).