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Zinc Selenide (ZnSe) Focusing Lenses- Precision Optical Accessories with Multiple Diameters and Focal Lengths(20mmx38.1mm)

Gallium Arsenide (GaAs) Optical Lenses Sheet - Focusing with Multiple Focal Lengths(18x38.1mm)

Germanium Lens with AR+DLC Coating for Optical/Thermal Imaging - 1pcs(30x3mm Coating)

Germanium Infrared Lens - Double-Sided Coating, 3-100mm Diameter -1pc(D25 x 2mm)

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

Gallium Arsenide (GaAs) Optical Lenses Sheet - Focusing with Multiple Focal Lengths(20x190.5mm)

Lens Converter for Microscope - 3/4/5 Holes, Turntable with Metal RMS 20.2mm...

High Quality Fluoride Optical Lenses - BaF2 Infrared Windows Various Sizes Available...

Neutral Density Optical Filter Sheet - 12.5mm/25mm/50x50mm H-K9L Glass 0.1-1.0 1 PCS(Round 12.5mmx0.6)

D106 F600/F900 Astronomical Telescope Single membranes Mirror Lens - 106mm Caliber with...

D60 Achromatic Objective Lens for DIY Astronomical Telescopes - Focal Lengths 360mm...

High Precision Coated Monocrystalline Silicon Substrate Window Wafer- 25-105mm Diameter, 0.5mm Thickness(82mm)

D70 Refractive Astronomical Telescope Objective Lens Set - 300mm to 900mm Focal...

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

Molybdenum Reflective Lens for CO2 machine Engraving Machines, 20-38.1mm, High Reflectivity Optical Accessory, 1PCS(20mmx2mm)

Germanium Lens with AR+DLC Coating for Optical/Thermal Imaging - 1pcs(15x2mm 2-Sided AR Coating)

High Performance Infrared Fluoride (BaF2) Lens: Optical Window for UV/IR Applications (D30 x 4mm)

Germanium Infrared Lens - Double-Sided Coating, 3-100mm Diameter -1pc(D18/20 x 2mm)

Microscope tube lens: F180 mm and F200 for getting superior images(F = 200 mm)

Neutral Density Optical Filter Sheet - 12.5mm/25mm/50x50mm H-K9L Glass 0.1-1.0 1 PCS(Round 25mmx0.2)

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

Premium Molybdenum Reflector Lens for CO2 machine Cutting Machines - 20mm, 25mm, 30mm Options-1pc(20mm*3mm)

High Precision 6.35mm Concave and Convex Coated Glass Lens for Laser Optical Collimation(1PCS)

High-Definition 154mm Astronomical Telescope D154F750 Series - Perfect for Stellar Observation and...

High-Purity JGS1 Quartz Glass Flakes - Polished U-V Optical Window(25 x 6mm)

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

20mm Neutral Density Filter with Mounting Bracket - C-Mount/SM1 Compatible, Optical Filter,...

D80 F600 Astronomical Telescope Refractor - 80mm Aperture, 600mm Focal Length for...

D60 Achromatic Objective Lens for DIY Astronomical Telescopes - Focal Lengths 360mm...

High Performance Infrared Fluoride (BaF2) Lens: Optical Window for UV/IR Applications (D50 x 1mm)