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High Performance Infrared Fluoride (BaF2) Lens: Optical Window for UV/IR Applications (D18 x 1mm)

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

Gallium Arsenide (GaAs) Optical Lenses Sheet - Focusing with Multiple Focal Lengths(20x88.9mm)

Neutral Density Optical Filter Sheet - 12.5mm/25mm/50x50mm H-K9L Glass 0.1-1.0 1 PCS(Square 50x50mmx0.6)

APO Flat Field Full Complex Achromatic Objective Lens - Metallographic Ultra Long Working Distance(2x)

High Precision 6.35mm Concave and Convex Coated Glass Lens for Laser Optical Collimation(10PCS)

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

Germanium Lens with AR+DLC Coating for Optical/Thermal Imaging - 1pcs(24x4mm Coating)

High Performance Infrared Fluoride (BaF2) Lens: Optical Window for UV/IR Applications (D22 x 1mm)

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

Gallium Arsenide (GaAs) Optical Lenses Sheet - Focusing with Multiple Focal Lengths(25x76.2mm)

Neutral Density Optical Filter Sheet - 12.5mm/25mm/50x50mm H-K9L Glass 0.1-1.0 1 PCS(Square 50x50mmx0.3)

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

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

Zinc Selenide (ZnSe) Focusing Lenses- Precision Optical Accessories with Multiple Diameters and Focal Lengths(15mmx50.8mm)

Neutral Density Optical Filter Sheet - 12.5mm/25mm/50x50mm H-K9L Glass 0.1-1.0 1 PCS(Round 12.5mmx0.5)

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

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

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

Germanium Lens with AR+DLC Coating for Optical/Thermal Imaging - 1pcs(40x2mm Coating)

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

High Quality Fluoride Optical Lenses - BaF2 Infrared Windows, Various Sizes Available 1 Piece(30x2mm)

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

Gallium Arsenide (GaAs) Optical Lenses Sheet - Focusing with Multiple Focal Lengths(18x63.5mm)

D80 F900 Astronomical Telescope Refractor Lens - 80mm Aperture, 900mm Focal Length,...

D154mm Multilayer Broadband Film Telescope Lens for 1200/750mm Focal Length - Superior Astronomical Observation(D154/F1200)

Germanium Lens with AR+DLC Coating for Optical/Thermal Imaging - 1pcs(45x2mm Coating)

High-Purity JGS1 Quartz Glass Flakes - Polished U-V Optical Window(12.5 x 3mm)

High Precision Coated Monocrystalline Silicon Substrate Window Wafer- 25-105mm Diameter, 0.5mm Thickness(40mm)

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