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

Germanium Lens with AR+DLC Coating for Thermal Imager and Optical Applications -...

1 x D150F750 Astronomical Telescope Reflector with Spherical Primary Mirror and 35mm...

60mm Refractive Astronomical Telescope Lens with Single Sided Blue Film for DIY Telescopes F300-F900mm(D60F300)

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

Telescope Eyepiece, Accessory, Optical Lens Full Coated High Definition Wide Angle 62...

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

High-Transmittance 850nm Optical Glass Filter Lens - Visible Light Cut-Off, Narrowband for...

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

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

850nm High Transmission Optical Glass Filter Lens - Visible Light Cutting, Narrow...

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

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

Achromatic Lens D40 for DIY Refractive Telescope Diameter 40 mm, Focal Length...

Blue Fused 60F410 Coated Achromatic Lens D60mm for Astronomical Telescopes (D62F600 Film)

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

D60F700 Double Separation Multilayer Lens Blue Film for DIY Astronomical Telescopes Refractors,...

1 x 203mm Parabolic Newtonian Reflector Primary Mirror D203F800 with 60mm Secondary (D203F800+60mm)

Double Convex K9 Optical Glass Lens, Diameter 20-58mm, Focal Length 40-200mm(D28 F50 C3.9 E1.7)

1 x D203F750 203mm parabolic Newtonian Reflector Primary Mirror with 70mm Secondary...

Secondary Mirror Short Axis for DIY Reflection Astronomical Telescopes (20-70mm Options Available)(45mm)

Achromatic Lens D40 for DIY Refractive Telescope Diameter 40 mm, Focal Length...

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

Germanium Lens with DLC Coating for Optical and Thermal Imaging - 1PCS(28x3mm AR+DLC)

High-Transmittance 850nm Optical Glass Filter Lens - Visible Light Cut-Off, Narrowband for...

Germanium lens with AR+DLC coating Imager thermometer viewing window Optical/Thermal 1 piece (30x2mm AR+DLC)

Germanium Lens with DLC Coating for Optical and Thermal Imaging - 1PCS(35x2mm AR+DLC)

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

Astronomical Reflector Telescope, 1 Piece Spherical Primary Mirror and 35mm Secondary -...

154 mm High Definition Dual Separation Lens for Refractive Astronomical Telescopes (D154F750 Multilayer)