... .Eyepieces:12.5/18.5x ...... Operating Microscope TM-300F1.Appliction and Features TM-300F operating Microscope is applicable for diagnosis,treatment,examination ... ,like orthopaedics,Surgery,ENT Surgery,ophthalmology and gynecology.2.Operating microscope Features and configuration: Objective Lens : f=200mm,300mm(Lens-changer ...