Plano convex lens, 50 mm Dia., 200 mm FL – Eisco Labs These plano-convex lenses feature one flat side and one convex side. They have a 50 mm Diameter and 200mm focal length. Product Details BrandEiscoManufacturerEiscoProduct TypeScience Lab Education Curriculum SupportMpnPH0532FCV Plano-Convex lens50mm diameter200mm focal length Check out my other items. Powered by