Glasses-type binocular loupe GNHM-400X

THE KEPLER LOUPES — TTL-4.0X Magnifying Glass/Cleaning Cloth/Fixed Rope/Warranty Card/Storage Bag Interpupillary Range：54-72mm(adjustable interpupillary) Working Distance：280-380mm/ 360-460mm/440-540mm/500-600mm Barrels material：metal Lens Material：A+grade optical glass material Feature: 【Ultra-light Lens】weighting only 68g（same magnification with built-in Loupe 80g) ，as light as wearing nothing. 【Excellent Optics】Excellent optical design-the lens adoptes A+grade imported optiical glass, color high fidelity, Multi-layer coated premium grade, light tansmittance is over 99%. 【Wide field of view and depth of field】providing a wide field of view and depth of fied, no blurred at the edges of the circle of vision. 【Convenient customization】provide optometry sheet only 【Amblylopia available】provide solutions for myopia glasses/ reading glasses. 【Delivery days】about 7 working days delivery 【Light Source】lamp holder lightweight and compact, weighting only 10g, highlight spotlight uniform light spot, no visible strobflash, not dazzling. Stemless brightness knob adjustment, yellow light filter can be added, filter blue light, super long runtime 4/12hours( optional power supply).