- Multi-layer optical lens from Germany, multi-layer nano-optical coating, 5-speed (3.2x、5x、8x、12.8x、20x) magnification, makes it clear and acute in each multiple. - A mong them, the eyepiece uses a 12.5x wide-angle eyepiece to provide a large field of view and 3D stereo imaging. - The diopter is +6~-6. The height of the eye cup is adjustable, and the operator wearing the glasses can work comfortably out of the glasses. **For further product information, please contact Chat Support**