67-329 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=750mm MgF2 400-700nm

The 67-329 is a high-quality achromatic doublet lens, sourced from the renowned optical components vendor, Edmund Optics. This lens, with a diameter of 25 mm, is designed for use in the visible spectrum, specifically optimized for the 400-700 nm range.

The lens is a multiplet, composed of two elements made from different materials. The first element is made from N-BK7, a borosilicate crown glass known for its excellent optical properties. The second element is made from N-SF5, a dense flint glass with a high refractive index and dispersion, making it ideal for achromatic applications.

The lens has an effective focal length (EFL) of 750 mm, providing a long focal length that is suitable for high magnification applications. The lens is coated with MgF2, a standard coating that offers excellent broadband anti-reflection performance, reducing surface reflections and improving transmission in the visible spectrum.

The lens has a center thickness of 2.5 mm and an edge thickness of 4.75 mm, providing a robust and durable design. The lens geometry is circular, with inner and outer radii of 0 mm, indicating a symmetrical design.

The lens is available for purchase directly from the Edmund Optics website, with a valid weblink provided in the item data. The lens is currently in stock, ensuring quick and reliable delivery.