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

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

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

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

1 Accessory for Reflective Astronomical Telescope D150F1200 Improved Planetary Observation (35 Short-Axis Secondary Mirror)

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

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

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

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

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

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

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

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

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

D60 mm Double Separated Multilayer Green Film Lens for DIY Refractor Astronomical Telescopes (D60F900)

Germanium Lens with DLC Coating for Optical and Thermal Imaging - 1...

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

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

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

Achromatic lens D70 mm for DIY astronomical telescope (Focal options: 400mm, 280mm,...

D106F600 D106F900 Double Film Lens for Astronomical Telescopes - 106 mm Diameter...

Short axis secondary mirror for DIY reflection astronomical telescopes (20 to 70...

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

D70 70mm Double Separation Single Sided Blue Film Telescope Lens with Retaining Ring(D70F700)

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

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

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

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

60mm Refractive Astronomical Telescope Lens with Single Sided Blue Film for DIY Telescopes F300-F900mm(D60F500)

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