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Germanium lens with AR+DLC coating for Thermal Imager and Optical Applications -...

50x50mm Absorption-Type Neutral Density Optical Filter - Glass Light Attenuation Sheet for...

Molybdenum Reflective Lens for High-Intensity Engraving Machines, 20/25/30mm Diameter, 1PCS, >94% Reflectivity(30x3mm)

D70 70mm Double Separation Single Sided Blue Film Telescope Lens with Retaining Ring(D70F800)

Green Film Achromatic Lens Bonded D80 mm for DIY Astronomical Telescopes -...

1 x Parabolic Reflector Lens D114F450 High Precision Primary and Secondary Mirror...

DIY Astronomical Telescope Lens Set for 70 mm and 80 Telescopes Convexoconcave...

Zinc Selenide (ZnSe) Focusing Lens - 1 Piece Optical Welding Machine Accessories,...

Germanium lens with AR+DLC coating Imager thermometer viewing window Optical/Thermal 1 piece (50x2mm AR+DLC)

High Precision K9 Optical Reflector Lens - Square/Round, Aluminium Coated, Pack of...

High Transmission Optical 850nm Glass Filter Lens - Cut off Visible Light,...

Germanium lens with AR+DLC coating Optical/Thermal Imager Thermometer Observation Window 1 piece...

50x50mm Absorption-Type Neutral Density Optical Filter - Glass Light Attenuation Sheet for...

Germanium Lens with DLC Coating for Optical and Thermal Imaging - 1PCS(14.5x2.5mm 2-Sided AR)

Secondary Mirror Short Axis for DIY Reflection Astronomical Telescopes (20-70mm Options Available)(42mm)

Gallium Arsenide Optical Lenses Sheet Focusing for Strong Light Applications, 1PCS, Multiple...

Germanium Lens with AR+DLC Coating for Thermal Imaging Camera and Optical Applications...

Molybdenum Reflective Lens for High Intensity Engraving Machines, Diameter 20/25/30 mm, 1...

Zinc Selenide (ZnSe) Focusing Lens - 1PCS Optical Welding Machine Accessory, 99.8%...

90mm Double Separation Lens for Refractive Astronomical Telescopes - Multilayer Coating Available(D90F900 Blue Film)

Germanium lens with DLC coating for optical and thermal imaging - 1 Unit(30x3mm AR+DLC)

50x50mm Absorption-Type Neutral Density Optical Filter - Glass Light Attenuation Sheet for...

50 x 50mm Neutral Density Absorption Filter - Optical Light Attenuation Film...

90mm Double Separation Lens for Refractive Astronomical Telescopes - Multilayer Coating Available(D90F1000 Blue Film)

50x50mm Absorption Type Neutral Density Optical Filter - Glass Light Attenuation Sheet...

High Precision K9 Optical Reflector Lens - Square/Round, Aluminium Coated, Pack of...

Telescope Accessory, for Wide Angle Eyepiece Telescope, Full Coating Aspheric Surface High...

Zinc Selenide (ZnSe) Focusing Lens - 1 Piece Optical Welding Machine Accessories,...

1 Accessory for Reflective Astronomical Telescope D150F1200 Improved Planetary Observation (Primary Mirror+Secondary Mirror)

D30 mm Bonded Lens for DIY Telescopes Achromatic with Optional Diameters and...