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6pc Optical Lens Set, 2" - 200mm, 300mm, 500mm Focal Lengths - 3 Double Convex & 3 Double Concave, 2" (50mm) Diameter Lenses - Optically True Glass - Ground, Beveled Edges - Eisco Labs

Get Special Price 6pc Optical Lens Set, 2 - 200mm, 300mm, 500mm Focal Lengths - 3 Double Convex & 3 Double Concave, 2 (50mm) Diameter Le...