AmScope SM03 Barlow Lense/Auxiliary Lense with 0.3X Magnification and 48mm Mounting Diameter

This is a 0.3X Barlow (auxiliary objective) lens for stereo microscopes with 48mm threading. It modifies the microscope's magnification by 0.3X to increase the field of view by roughly 3X, and increases the working distance to a maximum of 287mm (11.3in). The mounting thread is 48mm, compatible with AmScope SM, SW, and ZM series stereo microscopes. Due to the large working-distance, this Barlow lens is only intended for microscopes which support appropriate height-adjustment.