Feature: 1. HD OPTICAL COATED LENS: Stereo microscope objective lens is made of advanced FMC coating technology and reliable quality optical glass. 2. ADVANTAGE: 0.5X stereo microscope objective lens is characterized by high refractive index and high light transmission, large field of view, high definition imaging, clearer imaging. 3. STRONG METAL BODY: Stereo microscope auxiliary objective lens adopts full metal body, lens diameter 35MM/1.4in, aluminum alloy material, exquisite workmanship, more advanced appearance and texture. 4. 0.5X MAGNIFICATION: 0.5X reduction auxiliary objective increases the working distance to 165mm/6.5in, and the reduction magnification is the resulting magnification x 0.5. 5. THREADED CALIBER: The upper mouth threaded caliber of the objective lens are 48MM/1.9in, please check the size of your microscope before purchase, flexible choice. Specification: Item Type: Stereo Microscope Objective Lens Material: Glass, Metal Body Magnification: 0.5X. Package List: 1 x Stereo Microscope Objective Lens