The 240-2502 is a Neutral Density Filter from EKSMA Optics, designed with a circular base shape and a diameter of 25.4 mm. This filter is part of the Absorption Type Filters range, specifically designed for the Visible (VIS) spectrum, covering the wavelength range of 450-650nm.
The filter boasts a thickness of 1.1 mm and is coated with EKS 240-2502 on both the front and back surfaces. This coating is designed to enhance the filter's performance and durability. The filter's geometry is shaped as a Thin Lens, which is beneficial for applications requiring minimal optical path deviation.
The catalog number for this item is 240-2502, and it can be found on the EKSMA Optics website, where it is currently in stock. The link to the product page is provided for your convenience.