Converter 0.5x for TPL microscopes ETD-101 7-45x Bino / Trino and Bresser ETD-101 7-45x. Screwed in from the lens side, it changes the magnification from 7-45 to 3.5-22.5x. It can also be successfully used in TPL ICD 10-160x Bino / Trino, Bresser ICD 10-160x Trino, Delta Optical XTL-IV Bino / Trino microscopes, changing the magnification according to the multiplier. Screw thread for the microscope: M48 x 0.5 mm