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1 x 60mm D60mm Blue Fused Coated Achromatic Lens for Astronomical Telescopes...

Germanium lens with DLC coating for optical and thermal imaging - 1...

D70 70mm Double Separation Single Sided Blue Film Telescope Lens with Retaining Ring(D70F300)

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

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

Astronomical Reflector Telescope, Spherical Primary Mirror and 35mm Secondary - for Astronomy...

Gallium Arsenide Optical Lenses, Leaf Focusing Lenses for Strong Light Applications, Pack...

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

Gallium Arsenide Optical Lenses, Leaf Focusing Lenses for Strong Light Applications, Pack...

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

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

Germanium Lens with AR+DLC Coating - Optical/Thermal Thermometer Observation Window 1 Unit(30x3mm AR+DLC)

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

Blue Fused 60F410 Coated Achromatic Lens D60mm for Astronomical Telescopes (D60F342 Film)

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

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

Secondary Mirror Short Axis for DIY Reflection Astronomical Telescopes (20-70mm Options Available)(65mm)

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

154 mm High Definition Dual Separation Lens for Refractive Astronomical Telescopes (D154F1200 Multilayer)

High-Precision K9 Optical Glass Reflector Lens - Square/Round, Aluminum Coated, 1 PCS...

1 x D203F800 203mm Parabolic Newtonian Reflector Primary Mirror with 60mm Secondary...

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

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

Double Convex K9 Optical Glass Lens, Diameter 20-58mm, Focal Length 40-200mm(D30 F50 C5.2 E2.2)

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

Double Convex K9 Optical Glass Lens, Diameter 20-58mm, Focal Length 40-200mm(D42 F50 C8 E2.3)

Germanium lens with AR+DLC coating Imager thermometer viewing window Optical/Thermal 1 piece (50x3mm AR+DLC)

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

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 (D60F360)