Quartz Lens Back Catalog number: CTS-8068 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-2529 Screw, Comp., 10-32, 304SS, (Gold-Plated), 10/pk Price on request CTS-21106 Seal Wash PM Kit Price on request CTS-21564 Needle, Uncoated 10 Series Price on request