Technical Data PD Scale: 50mm~80mm Net weight: 61g Knobs fastened with screws Back lens holders of round corners Easily-shaped ear rests Available for 5 pieces trial lensed to be inserted at each side.
All the models
Trial frame
RS-400
Technical Data PD Scale: 50mm~80mm Net weight: 61g Knobs fastened with screws Back lens holders of round corners Easily-shaped ear rests Available for 5 pieces trial lensed to be inserted at each side.