Double Concave Lens H-K9L Biconcave Lenses 11mm Diameter , -19.37mm Focal Length Optical Glass BK7 Coated 400-700nm

Double Concave Lens H-K9L Biconcave Lenses 11mm Diameter , -19.37mm Focal Length Optical Glass BK7 Coated 400-700nm

Double Concave Lens H-K9L Biconcave Lenses 12mm Diameter , -19.3mm Focal Length Optical Glass BK7 Coated 400-700nm

Double Concave Lens H-K9L Biconcave Lenses 12mm Diameter , -24.12mm Focal Length Optical Glass BK7 Coated 400-700nm

Double Concave Lens H-K9L Biconcave Lenses 11.9mm Diameter , -27mm Focal Length Optical Glass BK7 Coated 400-700nm

Double Concave Lens H-K9L Biconcave Lenses 12mm Diameter , -24.12mm Focal Length Optical Glass BK7 Coated 400-700nm

Double Concave Lens H-K9L Biconcave Lenses 32mm Diameter , -47mm Focal Length Optical Glass BK7 Coated 400-700nm

Double Concave Lens H-K9L Biconcave Lenses 40mm Diameter , 100mm Focal Length Optical Glass BK7 Coated 400-700nm

Double Concave Lens H-K9L Biconcave Lenses 40mm Diameter , 100mm Focal Length Optical Glass BK7 Coated 400-700nm

Double Concave Lens H-K9L Biconcave Lenses 32mm Diameter , -47mm Focal Length Optical Glass BK7 Lenses Coated 400-700nm

Double Concave Lens H-K9L Biconcave Lenses 11.9mm Diameter , -27mm Focal Length Optical Glass BK7 Coated 400-700nm

Double Concave Lens H-K9L Biconcave Lenses 40mm Diameter , -100mm Focal Length BK7 Optical Glass

32mm H-K9L Optical Glass Lens Focal Length -47mm Double Concave Lens DIY Self-made Telescope Biconcave Lenses 400-700nm Lentes

Double Concave Lens H-K9L Biconcave Lenses 40mm Diameter , -100mm Focal Length BK7 Optical Glass

Meniscus Lens Optical BK7 Glass Lenses H-K9L 12mm Diameter, 29.73mm Focal Length Coated Glass for Experiment 400-700nm

Optical Plano Concave Lens H-ZF7LA Glass Lenses 12mm Diameter, -9.68mm Focal Length Coated 400-700nm for Teaching Experiment

Double Concave Lens H-K9L Biconcave Lenses 40mm Diameter , -100mm Focal Length Optical Glass Lenses

Meniscus Lens Optical H-K9LGlass Lenses BK7 20 mm Diameter, 55.95mm Focal Length Coated Glass 400-700nm for Experiment

Double Concave Lens H-ZF52A Biconcave Lenses 18mm Diameter , -9.56mm Focal Length Optical Glass Coated 420-760nm

Meniscus Lens Optical H-LAF53 Glass Lenses BK7 19mm Diameter, -30.97mm Focal Length Coated Glass 400-700nm for Experiment

Glued Lens H-K9L/F4 Achromatic Optical Glass Lenses 17mm Diameter 108mm Focal Length Cemented Lens Coated 400-700nm

Glued Lens H-K9L/F7 Achromatic Optical Glass Lenses 21.8mm Diameter ,80mm Focal Length Cemented Lens Coated 400-700nm

Glued Lens H-K9L/H-ZF2 Achromatic Optical Glass Lenses16mm Diameter 34.47mm Focal Length Cemented Lens Coated 400-700nm

Meniscus Lens Optical H-ZBAF3 Glass Lenses 35mm Diameter,69.2mm Focal Length ,optical Lens Coated 400-700nm for Experiment

Convex Lens H-ZK10L Optical BK7 Glass Lenses 30mm Diameter 37.55mm Focal Length Bi-convex With Coating 400-700nm

Meniscus Lens Optical Glass Lenses ZK6 30mm Diameter 30.26mm Focal Length Coated Glass for Experiment 400-700nm

Glued Lens H-ZF5/H-K9L Achromatic Optical Telescope Lenses 55mm Diameter 268.31mm Focal Length With Coating 400-700nm

100mm Diameter Optical Teaching lenses Focal Length -300mm Optics Double Concave Lens Biconcave Minifier Lens

Plano Convex Lens Diameter 18mm , Focal 64mm H-K9L Optical Glass Lenses BK7 Focusing Lens Spherical High-quality Customization

Diameter 11mm Coating AR@400-700nm Optical Grade Biconcave Lenses Experimental Element Light Diffusion Negative Focal Length

Plano Convex Glass Lens Diameter 10mm , Focal 14.8mm H-K9L Optical Glass BK7 Lenses Focusing Spherical High-quality Customizable

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