About this item Clear Imaging: High light transmittance, high refractive index, so that the imaging of the objective lens is brighter and clearer. High Quality Material: The achromatic objective lens is made of aluminum alloy and optical glass material, sturdy and durable, and long service life. Exquisite Workmanship: The mirror body is made of high quality materials and exquisite workmanship. It is an important accessory of the microscope. Strong Practicability: The objective lens adopts a standard interface, which can be used with microscopes of the same aperture. Wide Field of View: The wide field of view makes viewing more comfortable, and the lens will not corrode or become blurred.