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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%...
High Precision K9 Optical Reflector Lens - Square/Round, Aluminium Coated, Pack of...
90mm Double Separation Lens for Refractive Astronomical Telescopes - Multilayer Coating Available(D90F900 Green Film)
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)
Achromatic Lens D40 for DIY Refractive Telescope Diameter 40 mm, Focal Length...
Newton D305F1200 Parabolic Reflector Primary Mirror, 305 mm Aperture, 1200 Focal, for...
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...
Secondary Mirror Short Axis for DIY Reflection Astronomical Telescopes (20-70mm Options Available)(35mm)
50x50mm Absorption-Type Neutral Density Optical Filter - Glass Light Attenuation Sheet for...
Achromatic lens D70 mm for DIY astronomical telescope (Focal options: 400mm, 280mm,...
D106F600 D106F900 Double Film Lens for Astronomical Telescopes - 106 mm Diameter...
1 x D203F750 203mm Parabolic Newtonian Reflector Primary Mirror with 70mm Secondary...
1 Newton D150F750 parabolic Reflector Primary Mirror and 35mm Secondary for DIY...
1 x Parabolic Reflector Lens D114F450 High Precision Primary and Secondary Mirror...
1 x D203F750 203mm parabolic Newtonian Reflector Primary Mirror with 70mm Secondary...
D70 70mm Double Separation Single Sided Blue Film Telescope Lens with Retaining Ring(D70F400)
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