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Lenses Spherical Bi-Convex, 50 mm Diameter, Focal Length 300mm
Made of polished glass with ground edges
Lenses Spherical Bi-Convex, 50 mm Diameter, Focal Length 100mm
Made of polished glass with ground edges
Lenses Spherical, Bi-Convex, 50 Mm Diameter 50Mm
High-quality optical magnification for precision viewing.
Lenses Spherical Bi-Convex, 50 mm Diameter, Focal Length 150mm
Made of polished glass with ground edges
Lenses Spherical Bi-Convex, 50 mm Diameter, Focal Length 200mm
Made of polished glass with ground edges
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