14NDF-1-1 12.7 mm Dia. Unmounted Absorptive Neutral Density Filter; OD 2 400-700nm

The 14NDF-1-1 is a circular, unmounted absorptive neutral density filter, designed for use in the 400-700nm wavelength range. This filter is sourced from Standa, a reputable vendor known for their high-quality optical elements. The filter has a diameter of 12.7mm and a thickness of 3mm, making it a compact yet robust option for various optical applications.

The filter's neutral density is achieved through an absorptive coating, denoted as 'sta 14ndf-2' on both the front and back surfaces. This coating provides an optical density (OD) of 2, which means it reduces the intensity of the incident light by a factor of 100. This feature is particularly useful in applications where controlling light intensity is crucial, such as in photography, laser applications, or spectroscopy.

The filter's geometry is shaped as a thin lens, which may provide additional benefits depending on the specific application. This filter is currently in stock and available for purchase through the vendor's website, as indicated by its valid weblink status.