... always able to produce low price laser focus lens, laser lens optics with reliable quality. ZnSe Laser Focus Lens Data SheetDia MeterFocus LengthThicknessWavelengthmmmmmmμm1250.8210 ... .More Spare Parts to buy:Laser Tubes, Laser Power Supply, Water Chillers, Laser Controllers, Laser Motors, Laser Drivers, Laser Focus Lens, Laser Reflective Mirrors, Laser Head, Laser Pulley, Laser Belt, etc.