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Optical Glass Plano-convex Lens Diameter 7mm Focal Length 20mm Optical Experimental Lens

Optical Glass Plano-convex Lens Diameter 7mm Focal Length 20mm Optical Experimental Lens

Optical Glass Plano-convex Lens Diameter 7mm Focal Length 20mm Optical Experimental Lens

Optical Glass Plano-convex Lens Diameter 7mm Focal Length 20mm Optical Experimental Lens

Optical Glass Plano-convex Lens Diameter 7mm Focal Length 20mm Optical Experimental Lens

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Plano Convex Lens Diameter Diameter31mm , Focal 54.92mm Optical Lenses K9 Glass Focusing Lens With AR Coating

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