542-7270 25.4 mm Dia. x -2000 mm FL; Uncoated; Plano-Concave Lens

This is a Plano-Concave Lens, type Spherical Lens, offered by EKSMA Optics. The lens has a base shape of Circular and is constructed from Barium Fluoride (BaF2) material, identified as BAF2 CGDM. The lens's diameter measures 25.4 mm, and its center thickness is 2.5 mm. The effective focal length (EFL) is -2000 mm, indicating a diverging lens. The inner and outer radii are both zero, suggesting a simple plano-concave design.

The lens is designed to operate at a wavelength of 3000 nm. It does not come with any coating, as indicated by the empty 'coating' field in the item data. This uncoated feature might affect the lens's performance in certain applications, particularly those requiring high transmission or resistance to environmental factors. Therefore, users should consider this aspect when selecting this lens for their specific needs.

For more information about this lens, including its availability and potential applications, users are encouraged to visit the vendor's website via the provided weblink: https://eksmaoptics.com/optical-components/uv-and-ir-optics/barium-fluoride-baf2-lenses/. The weblink status is valid, and the lens is reported to be in stock as of the last update.