... :12.5/18.5x ............... Operating Microscope TM-300F1.Appliction and Features TM-300F Portable operation Microscope is applicable for ... Surgery,ophthalmology and gynecology. Compared with normal operation microscope,TM-300FC Portable opeation microscope has the larger range of ... , 1, 1.6, 2.5xSpecification :Binocular Tube: 45°or 180° inclinable (optional )Obejective Lens: f=200mm (f=300mm is ...