•  When the rod is pushed completely into  head, 100% of the microscope image is  directed to the binocular eyepiece for observation. •  In the mid-position, adjusted until a click is  heard, 100% of the image is directed to the  trinocular port for photographs or video  images.  •  In the fully extended position, 30% of the  image is directed to the binocular eyepieces,  and 70 % to the trinocular port. 1. To install the camera on the microscope, first remove the front lens of the camera and put the  thread in its place. Then screw in the adapter tube to the thread of the camera. 2. Loosen the knurled screw located on the side of the dual viewing head until the protective cap  that covers the port can be removed (Fig.4).  3. Insert the adapter tube with the camera  mounted on the vertical port. If it does  not connect easily, unscrew the knurled  screw until the adapter tube drops into  the port and is firmly in place.  4. Tighten the knurled screw firmly to  support the camera well in place.  5. Place the sliding rod to mid, or extended position to allow the image to  be directed to the camera.  6. Operate the camera according to the  manufacturers instructions. 1.  To install the camera on the microscope, screw the adapter tube on the video camera.  2. Loosen the knurled screw located on the side of the dual viewing head until the protective cap  that covers the port can be removed (Fig.4).  Adapter tube Light  controlling  rod  Knurled  screw Fig. 4  Fig. 3  Photo adapter  Video adapter  B.  To adapt a video camera, an adapter tube is required (Fig. 3). This adapter contains a 0,5X lens for  video that measures the correct parfocality between binocular, and the vertical port images. The  vertical port is responsible for the images appearing on the TV monitor. The adapter tube also  includes a “C” knurled ring and a “CS” type ring to accommodate different types of video cameras. A.  To adapt a photographic camera, an adapter tube is required. (Fig. 3). This adapter tube includes a  2.5X photographic lens which measures the parfocality correctly between the images of the binocular  and vertical ports. The adapter tube also requires a T mount adapted to fit the T threads of all reflex  photographic camera brands on the market.  -8- 