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Molybdenum Reflective Lens for CO2 machine Engraving Machines, 20-38.1mm, High Reflectivity Optical Accessory, 1PCS(19.05mmx3mm)

High Performance Calcium Fluoride (CaF2) Lens: Infrared Optical Window Ideal for Energy...

Monocrystalline silicon infrared lenses with anti-reflective coating for electronic sensors Keys(50.8x2mm)

High-Purity JGS1 Quartz Glass Flakes - Polished U-V Optical Window(5 x 2mm)

Zinc Selenide (ZnSe) Focusing Lenses- Precision Optical Accessories with Multiple Diameters and Focal Lengths(18mmx50.8mm)

Circular Linear Polarizer - 2.5mm Thickness, 400nm-700nm Wavelength, 1000:1 Extinction Ratio-1pc(50.8mm EXT 1000:1)

Lens Converter for Microscope - 3/4/5 Holes, Rotating Plate with Metal RMS...

Molybdenum Reflective Lens for CO2 machine Engraving Machines, 20-38.1mm, High Reflectivity Optical Accessory, 1PCS(38.1mmx3mm)

77mm Kaleidoscope Camera Lens Filter-Vortex Effect-Compatible with 49mm, 52mm, 55mm, 58mm, 62mm,...

Uncoated Crystal Optical Window 10mm to 300mm Diameter for Infrared & U...