Diameter 58mm Telescope Cemented Doublet Objective Lens Achromatic Optical Lens With Blue Film Focal Length 195mm

50 51 52 53 58mm Telescope Cemented Doublet Objective Lens Achromatic Optical Lens Focal Length 125mm-987mm

50 51 52 53 58mm Telescope Cemented Doublet Objective Lens 51F225 51F189 51F182 Achromatic Optical Lens Focal Length 125mm-987mm

Double-Cemented Blue Film Objective Lens Diameter 23mm Focal Length 213mm Glass Achromatic Lenses for DIY Telescope

H-K9L Diameter 17mm Focal Length 1830.5mm Optical Glass Telescope Doublet Achromatic Cemented Lens Agglutination Balsaming Lens

25.4mm Optical Glass Achromatic Doublet Double Convex Lens Focal Length 30 100 DIY Astronomic Telescope Objective Cemented Lens

83mm Telescope Cemented Doublet Objective Lens Achromatic DIY Optical Lenses Focal Length 400mm-900mm

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Achromat Doublet Achromatic Lens Diameter 36mm Focal Length 123mm Achromatic Optical Glass Doublet Telescope Objective Lens

82.5mm 83mm Cemented Doublet Lens Optical Achromatic Telescope Objective Lens DIY Focal Length 316 500mm

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Achromatic Positive Cemented Lens Diameter 25mm Focal Length 93.67mm Optical Doublet Cemented Telescope Achromatic Lens

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Optical Glass Optical Glass Glued Cemented Telescope Objective Achromatic Lens Diameter 10mm Focal Length 155.5mm

72 73mm Telescope Cemented Doublet Objective Lens Achromatic DIY Optical Lenses Focal Length 280mm 700mm

Optical Glass Optical Glass Glued Cemented Telescope Objective Achromatic Lens Diameter 16mm Focal Length 34.47mm Optical Glass

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82mm Telescope Cemented Doublet Objective Lens Achromatic DIY Optical Lenses Focal Length 330mm Green Coating

72 73mm Telescope Cemented Doublet Objective Lens Achromatic DIY Optical Lenses Focal Length 280mm 700mm

82mm Telescope Cemented Doublet Glued Objective Lens Achromatic DIY Optical Lenses Focal Length 330mm Green Coating

Achromatic Optical Lens Doublet Lens Diameter 57mm Focal Length 550mm Telescope DIY Objective Lens

Achromatic Positive Cemented Lens Diameter 74mm, Focal Length 3000mm Optical Glass Telescope Doublet Cemented Achromatic Lens

21.5 23 25 27mm Telescope Cemented Doublet Objective Lens Achromatic DIY Optical Lenses Focal 24.5-262mm

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Telescope 60mm 61.5 62 63mm Cemented Doublet Objective Lens Achromatic DIY Optical Lenses Focal 228mm~800mm

Achromatic Positive Cemented Lens Diameter 18mm Focal Length 105mm Telescope Doublet Cemented Achromatic Lens

Achromatic positive cemented lens Diameter 25.3mm Focal length 103mm achromatic double for astronomic telescope objective

Diameter 42mm Achromatic objective Doublet Objective Lens Focal 110mm DIY Telescope Objective Coating 1pc

Convex lens large aperture astronomical telescope objective double cemented achromatic can be customized diameter 52mm focal len

Diameter 42mm Achromatic objective Doublet Objective Lens Focal 110mm DIY Telescope Objective Coating 1pc

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