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D60 mm Double Separated Multilayer Green Film Lens for DIY Refractor Astronomical Telescopes (D60F300)

Germanium lens with AR+DLC coating for thermal imaging cameras and optical applications...

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

Germanium lens with DLC coating for optical and thermal imaging - 1 Unit(28x2mm AR+DLC)

Germanium Lens with AR+DLC Coating for Thermal Imager and Optical Applications - 1PCS(70x2mm AR+DLC)

90mm Double Separation Lens for Refractive Astronomical Telescopes - Multilayer Coating Available(D90F500 Broadband Film)

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

Telescope Accessory, Eyepiece Adapter T2 Mount 2 Inch to M42*0.75 Thread Camera Accessories

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

Neutral Density Optical Filter Sheet - 12.5mm/25mm Diameter, H-K9L Glass, for Photographic...

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

360 Degree Rotation Controller for Astronomical Telescopes Compatible Accessories M42, M48 and M54(S8252 CAA)

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

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

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

Germanium lens with DLC coating for optical and thermal imaging - 1 Unit(30x2mm AR+DLC)

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

Germanium lens with DLC coating for optical and thermal imaging - 1 Unit(24x4mm AR+DLC)

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

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

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

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

154mm High Definition Dual Separation Lens for Refractive Astronomical Telescopes (D154F750 Single-Layer)

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