2X Biological Microscope Barlow Lens

This 2X Barlow lens is purpose-built for biological microscopes equipped with the 23.2mm eyepiece mount — the globally accepted standard interface (0.91 inch) used across academic, clinical, and teaching laboratories. Made from solid metal in matte black finish, it offers mechanical stability and resistance to environmental wear. Its optical design supports a 15mm field of view and integrates cleanly into the eyepiece path with a 22mm insertion depth and 29mm total barrel length. Fully compatible with both traditional Huygens and contemporary wide-angle eyepieces adhering to the 23.2mm specification. Excludes stereo microscopes (30mm interface). Includes only the Barlow lens — no accessories or mounting tools.