Magnifier - OptiVISOR Glass Lens #10
Focal Length: 4" Power: 3.5 Lens Plate Only - for use on Donegan OptiVISOR Lens made in USA of Optical Glass. For use on OptiVISOR body as replacement, or to provide alternative choice of magnification. Please note that each OptiVISOR includes a lens plate. Please order a lens plate separately only if you need more than one lens plate.