The 243-2715 is a Color Glass Filter, sourced from the reputable vendor EKSMA Optics. This filter, with a catalog number of 243-2715, is available for purchase directly from their website, which is currently in stock.
The filter is circular in shape, with a diameter of 25.4 mm and a thickness of 3 mm. It is made from a material identified as "uvfs mal- 1965", which is not further specified in the provided data.
The wavelength of this filter is 588 nm. The coating on both the front and back of the filter is "eks 243-2715", suggesting a uniform treatment for optimal performance.
The filter is designed in the shape of a thin lens, implying a specific curvature and refractive index. However, the specifics of these properties are not provided in the item data.