We are FYSCOPE, a professional microscope supplier with our own factory and collaborative companies. We offer a wide range of microscope parts, with more items being added to our store regularly. Our technicians inspect all items before shipping, and our professional packers ensure safe delivery, so you can shop with confidence. Welcome to bid, and please contact us with any questions. Wholesale welcome! Get what you want! FYSCOPE 2pcs/pack 0.5X & 2.0X Industrial Microscope Camera Lens for ZM45 C-MOUNT Lens Barlow Auxiliary Objective Lens Feature: 0.5X and 2.0X Magnification For Industrial Microscope Camera C-MOUNT Lens 1-3/4\" (40.5mm) Mounting Thread Doubles the total magnification of your microscope and reduces the focus length Objective magnification by 0.7 - 4.5X (approximately 10 - 180X on the display screen, with 0.5X or 2.0X Barlow lens approximately 5 - 360X on the display screen) Package Includes: 1 x 0.5X Barlow Lens 1 x 2.0X Barlow Lens