This is a Plano-Convex Lens, type Lens, subtype Spherical Lens, base shape Circular, and geometry Circular. The lens has a diameter of 25.4 mm and a thickness edge of 2.5 mm, with a thickness center of 3 mm. The effective focal length (EFL) is 400 mm, and the radius of curvature (R1) is 206.68 mm. The inner radius is 0 mm, and the outer radius is also 0 mm.
The lens is made of n-bk7 schott material and is designed for a wavelength of 546 nm. The shape of the lens is Spherical, and it does not have any coating. The lens is sourced from the vendor Standa.
According to the provided data, the lens is in stock and available for purchase. The link to the vendor's website is valid, providing more detailed information about the lens and the purchasing process.