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APO Flat Field Full Complex Achromatic Objective Lens - 2X, 5X, 10X,...

1pcs Infrared Germanium Lens Double Sided Coating - Window Sheet for Thermometers(D70x2mm)

High Resolution Achromatic 50mm Lens for DIY Astronomy Telescopes - Multilayer Coated...

Calcium Fluoride (CaF2) Infrared Lens - High Transmittance Optical Window for machine Applications(D10x1mm)

Mirror Set for Astronomical Telescope D203 F1600mm - 203mm Primary and Secondary...

Wafer for Window with Coated Silicon Substrate - Monocrystalline Optical (Diameter 25-105mm, Thickness 0.5mm)

Wafer for Window with Coated Silicon Substrate - Monocrystalline Optical (Diameter 25-105mm, Thickness 0.5mm)

Calcium Fluoride (CaF2) Infrared Lens - High Transmittance Optical Window for machine Applications(D125x5mm)

Calcium Fluoride (CaF2) Infrared Lens - High Transmittance Optical Window for machine Applications(D15x2mm)

Quartz Focus Collimator Lens - Diameter 20mm to 55mm, Thickness 1mm 9mm, 1pc

Kaleidoscope Camera Lens Filters - Vortex Effect 49mm to 82mm Compatible with...

D154F750 HD Astronomical Telescope Objective Lens - 154mm Diameter, 750mm Focal Length,1pcs(Monolayer broadband Membrane)

Calcium Fluoride (CaF2) Infrared Lens - High Transmittance Optical Window for machine Applications(D20x2mm)

Lens Converter for Microscope - 3/4/5 Hole, RMS 20.2mm, Durable Metal Adapter...

JGS1 Quartz Glass Flakes Polished U-V Optical Window for Fluorescence Detection and...

Calcium Fluoride (CaF2) Infrared Lens - High Transmittance Optical Window for machine Applications(D20x3mm)

JGS1 Quartz Glass Flakes Polished U-V Optical Window for Fluorescence Detection and...

Quartz Focus Collimator Lens - Diameter 20mm to 55mm, Thickness 1mm 9mm, 1pc

High Resolution Achromatic 50 mm Lens for DIY Astronomy Telescopes - Multilayer...

D60 360-900mm Refractive Achromatic Lens with Double Separation for DIY Astronomical Telescopes...

Quartz Focus Collimator Lens - Diameter 20mm to 55mm, Thickness 1mm 9mm, 1pc

Quartz Focus Collimator Lens - Diameter 20mm to 55mm, Thickness 1mm 9mm, 1pc

D106 F600/F900 Astronomical Telescope Single Membrane Mirror Lens with Blue Film -...

Quartz Focus Collimator Lens - Diameter 20mm to 55mm, Thickness 1mm 9mm, 1pc

Calcium Fluoride (CaF2) Infrared Lens - High Transmittance Optical Window for machine Applications(D90x4mm)

F600 90mm Double Separation Green Film Refractive Lens for Astronomical Telescopes 1 Pcs

Quartz Focus Collimator Lens - Diameter 20mm to 55mm, Thickness 1mm 9mm, 1pc

Wafer for Window with Coated Silicon Substrate - Monocrystalline Optical (Diameter 25-105mm, Thickness 0.5mm)

1 x D70 Refractive Astronomical Telescope Lens Set for DIY - Focal...

185 Achromatic Lenses for Biological Microscopes - 4x, 10x, 40x, 100x Magnification,...