Specifications: Couple: 20 X, Lens Size: 17 mmdia, Lens Vacuum: 12 mmdia, Lens Type: achromatic lens [Precision Loss Chromatic Correction]. Size: 27x43x19mm. About Warranty Warranty period is complied with manufacturer's regulation.You may need to send the item to the manufacturer in Japan (or us) for repair unless the manufacturer in your country can handle with it.
