45-268 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=500mm MgF2 400-700nm

The 45-268 is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens is designed with a base shape of 25 mm diameter and a focal length of 500mm, making it suitable for a wide range of optical applications.

The lens is constructed from two types of glass, N-BK7 and N-SF5, both from Schott. This combination is strategically chosen to minimize chromatic aberration, a common issue in optical systems. The lens's geometry is meticulously designed with an inner radius of 0 and an outer radius of 0, ensuring optimal light transmission.

The 45-268 features a front and back coating of edm mgf2 std curve, which enhances its light transmission capabilities and durability. The lens's thickness varies, with an edge thickness of 5.13mm, a center thickness of 3mm, and a center 'a' thickness of 2.5mm. This variation in thickness is designed to optimize the lens's performance and reduce optical aberrations.

The lens is available for purchase directly from the Edmund Optics website, where it is currently in stock. The website also provides detailed specifications and additional technical information for this product. With its superior design and construction, the 45-268 is an excellent choice for those seeking a high-performance achromatic doublet lens.