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Double Refractive Separation Achromatic Lens D60 360-900mm for DIY Astronomical Telescopes (Film:D60 F800)

Coated Monocrystalline Silicon Substrate Wafer for Infrared Applications - 25-105mm Diameter, 0.5mm Thickness (82mm)

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

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

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

D60 360-900mm Dual Refractive Separation Achromatic Lens for DIY Astronomical Telescopes (Film:D60 F500)

Germanium Lens with AR+DLC Coating for Optical/Thermal Imager Thermometer - 1pcs(28x3mm Coating)

Circular Polarizing Film - Round Sheet 1 Piece for Reflections and Optical...

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

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

ZnSe Focusing Lenses for Optical Welding Machines - 12mm to 28mm Diameter,...

Circular Linear Polarizer - 12.7 mm, 25.4 50.8 mm Superior Light Control...

D60 360-900mm Dual Refractive Separation Achromatic Lens for DIY Astronomical Telescopes (Film:D60 F360)

ZnSe Focusing Lenses for Optical Welding Machines - 12mm to 28mm Diameter,...

High Transmission Optical Glass Filter Lens 850nm Narrow Band Infrared Light 1pcs (34x1.2mm)

Magnesium Fluoride (MgF2) Ultra Fine Crystalline Substrate - High Purity Optical Window...

Light Filter for Black and White Photography - Optical Glass Color Correcting Landscape (1PCS)(19mm)

Circular Polarizing Film - Round Sheet 1 Piece for Reflections and Optical...

Light Filter for Black and White Photography - Optical Glass Color Correcting Landscape (1PCS)(34mm)

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

1 Piece (50.8 x 2.0 mm) Glass for Optical Window Crystal -...

1 x Circular Linear Polarizer - 2.5mm Thick, Available in Diameter from...

Barium Fluoride (BaF2) Infrared Lens - Optical Window for UV and IR...

High-Purity JGS1 Quartz Glass Flakes - Polished U-V Optical Window for Fluorescence...