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

Light Filter for Black & White Photography - Optical Glass Color Correction...

850 nm High Transmittance Optical Glass Filter Lens - for Narrow Band...

High Precision Optical Window Piece - 1 Glass Cube Reference Mirror for...

850nm High Transmittance Optical Glass Filter Lens - Narrow Band Infrared Light...

Germanium Lens with AR+DLC Coating for Optical/Thermal Imager Thermometer - 1pcs(60x2mm Coating)

850nm High Transmittance Optical Glass Filter Lens - for Narrow Band Infrared...

Circular Polarizing Film - 1PCS Round Sheet for Reflections and Optical Experiments,...

Coated Monocrystalline Silicon Substrate Wafer for Infrared Applications - 25-105mm Diameter, 0.5mm Thickness (52mm)

Lens Set for Refractive Astronomical Telescope D70 mm DIY Projects Focal lengths...

Absorption Type Neutral Density Optical Filter - Square Attenuation Sheet 50x50mm, Transmittance...

77mm Vortex Camera Filter - Kaleidoscope Lens for Photography Includes Adapter Rings...

Gallium Arsenide Optical Lenses Sheet - GaAs Focusing with Various Focal Lengths...

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

Reflective Molybdenum Lens for CO2 Engraving Machines, Diameter 20-38.1 mm, 1 Piece,...

Light Filter for Black and White Photography - Optical Glass Color Correction...

Germanium Lens Substrate, 1 Observation Window Sheet for Thermal Imaging Camera and Thermometer(D24*4mm-AR+DLC)

Neutral density Optical Filter Sheet-12.5mm/25mm/50x50mm-optical 0.1-1.0-Glass H-K9L 1pcs(Round D25mm Density0.2)

Lens Set Objective for D70 mm Refractive Astronomical Telescope DIY Projects -...

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

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

Calcium Fluoride Lens (CaF2) - Infrared Optical Window for Mechanical Applications D10-D150...

Zinc Selenide Machine Focus Lens: 10.6µm Wavelength, Anti-glare Coating, Precision Optical Component(D18/F76.2mm)

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