The 48-305 is a UV-AR coated, UV double-convex lens, boasting a diameter of 25mm and a focal length of 50mm. This lens, sourced from the reputable vendor Edmund Optics, is a Spherical Lens of the Convex-Convex subtype, with a base shape of Circular.
The lens's geometry is meticulously designed, with a diameter of 25mm, an edge thickness of 2.11mm, and a center thickness of 5.66mm. The effective focal length (EFL) is 50mm, while the back focal length (BFL) is 48.02mm. The radii of curvature are R1: 44.94mm and R2: -44.94mm. The inner and outer radii are 0mm each.
The lens is constructed from fused sil mal-1965, a material known for its optical clarity and durability. The wavelength of this lens is 587.6nm. The lens features a coating on both the front and back, specifically the EDM UV STD CURVE. This coating enhances the lens's performance in the UV spectrum, between 250-425nm.