Glass Lens Set of 6, Dia. 50mm

Ny set dia misy enina karazana masom-bidy manan-danja indrindra., Ahitana ny iray amin'ireto manaraka ireto: plan -concave, convex-concave, concves double, concave-convex, plan-convex, and double convex. ? Ny savaivon'ny lens dia 50-mm eo ho eo.