Automatic frame clamping and probe insert Loading a frame is simple. Place the frame between the clamps and press a trace button. The rest is automatic! Both eyewires are traced in succession. Frames, lenses and patterns Tracing anlens or pattern is as simple as placing a block anywhere on a lens or pattern. The FD-80 will automatically select the lens tracing probe. Boxed and decentered lens-shape data Creates a perfectly boxed lens-shape data automatically or optionally creates a decentered lens-shape data if the patients Rx information is inputted.