Disk, Cemented Doublet Achromatic Lens

P Achromatic Lens Type Disk, Cemented Doublet Form Polished Allsides Material Glass. Coating Ar Visible Mount Al Cell/With Retaining Ring. Dimensions: Od 2.0″ Ca Can/A Thk 2.5″ Radius N/A Fl 18-24″ ***MPN ***OEM Custom ***SKU*** GLS271