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

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

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

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

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

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

High Performance Infrared Fluoride (BaF2) Lens: Optical Window for UV/IR Applications (D40 x 1mm)

Neutral Density Optical Filter Sheet - 12.5mm/25mm/50x50mm H-K9L Glass 0.1-1.0 1 PCS(Round 12.5mmx1)

High Precision Optical Sapphire Window - Premium Lens 1 Piece (8 x mm)

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

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

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

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

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

Neutral Density Optical Filter Sheet - 12.5mm/25mm/50x50mm H-K9L Glass 0.1-1.0 1 PCS(Square 50x50mmx0.2)

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

High Precision Optical Sapphire Window - Premium Lens 1 Piece (11 x 11 mm)

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

Monocrystalline Silicon Infrared Lenses with Anti-Reflection Coating for Electronic Sensors Key (25...

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

High-Purity JGS1 Quartz Glass Flakes - Polished U-V Optical Window(20 x 3mm)

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

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

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