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Sheet for Optical Gallium Arsenide Lenses - GaAs Focusing (Multiple Focal Lengths...

D60mm Glued Objective Lens - 60F410 Fused Blue-Coated Achromatic for Astronomical Telescopes(D61.5F228 green film)

Short-Axis Secondary Mirror for DIY Reflecting Astronomical Telescopes - 20/25/35/40/70mm Options(90mm)

D30mm Glued Objective Lens for DIY Astronomical Telescopes - Achromatic with Blue/Green...

Short-Axis Secondary Mirror for DIY Reflecting Astronomical Telescopes - 20/25/35/40/70mm Options(35mm)

D30mm Glued Objective Lens for DIY Astronomical Telescopes - Achromatic with Blue/Green...

Germanium Lens with AR+DLC Coating for Optical/Thermal Imaging - 1PC(11.8x1mm 2-Sided AR Coating)

850nm High Transmittance Optical Glass Filter Lens - Infrared Narrow Band Filter, 1pc(25x1mm)

D131F1200 Double Separate Single-Layer Blue Film Lenses for Astronomical Telescopes 1pcs

Gallium Arsenide Optical Lenses Sheet - GaAs Focusing (Multiple Focal Lengths Available)(20x88.9mm)

Germanium Lens with AR+DLC Coating for Optical/Thermal Imaging - 1PC(15x1mm 2-Sided AR Coating)

360 Degree Rotator Controller for Astronomical Telescopes - Accessories Compatible with M42,...

D60mm Glued Objective Lens - 60F410 Fused Blue-Coated Achromatic for Astronomical Telescopes(D60F410 blue film)

Germanium Lens with AR+DLC Coating for Optical/Thermal Imaging - 1PC(50x3mm Coating)

60mm Refractive Astronomical Telescope Objective Lens with Single-Sided Blue Film for DIY Telescopes 1pcs(D60F400)

60mm Refractive Astronomical Telescope Objective Lens with Single-Sided Blue Film for DIY Telescopes 1pcs(D60F700)

D70mm Refractive Achromatic Objective Lens for DIY Astronomical Telescope - 400mm, 280mm,...

D70 70mm Double-Separation Single-Sided Blue Film Objective Lens for Astronomical Telescopes(D70F800)

DIY Multipurpose Astronomical Telescope Lens Set for Xingtrang 704/705 - Convex Concave Optical (80x500)

Short-Axis Secondary Mirror for DIY Reflecting Astronomical Telescopes - 20/25/35/40/70mm Options(65mm)

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

Reflective molybdenum lens for CO2 engraving machines, diameter 20-38.1 mm, 1 piece,...

D106 106mm Refracting Astronomical Telescope Objective Lens - Multi-layer Coated for Enhanced...

D150F1200 Reflective Astronomical Telescope Accessories - 150mm Primary Mirror & 35mm Secondary...

D80F500 83mm Glued Green Film Astronomical Telescope Objective Lens - DIY Multilayer Wideband Coating

D130F650 Parabolic Newton Reflector Primary Mirror Objective with 35mm Secondary 1pcs(D130F650+35mm)

D40 Glued Achromatic Objective Lens, 40 mm Diameter, 205 Focal Length, Self-Adhesive...

305mm Parabolic Newton Reflector Primary Mirror with 80mm Secondary - DIY Astronomical...

D30mm Glued Objective Lens for DIY Astronomical Telescopes - Achromatic with Blue/Green...

Gallium Arsenide Optical Lenses Sheet - GaAs Focusing (Multiple Focal Lengths Available)(25x127mm)