Interchangeable's
Two, and three lens systems are used
for different times of the day and light
conditions. Knob and 8 slot technology
make the changing of lenses hassle free.
Combine this with die-cut, ballastic, selenite
polycarbonate lenses for optically correct vision

                                         
                      SG 1                                            

                        
                     8 Slot                           Romer II                       

                         
                                          2002