0.5X CTV LENCE ADAPTER FOR TRINOCULAR MICROSCOPE CAMERA (38 MM )THIS 0.5X CTV IS USED TO CONNECT THE CAMERA WITH THE TRINOCULAR STEREO MICROSCOPE, IT WILL HAVE A BETTER VISUAL IMAGE, INSERT IT INTO THE 3rd lLENS TUBE ON THE MICROSCOPE, AND THEN INSERT THE MICROSCOPE CAMERA TO ENJOY THE O..