MFND-30-40 30 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm

The MFND-30-40 is a Neutral Density Filter, specifically designed for use in the visible light spectrum, with a wavelength of 550nm. This filter is manufactured by OptoSigma, a renowned vendor in the optical industry, and is available for purchase on their official website. The catalog number for this product is MFND-30-40.

This filter is mounted and features a circular design with a diameter of 30mm and a thickness of 2mm. The material used for the filter is N-BK7, a type of glass manufactured by Schott, which is known for its excellent optical properties.

The filter is coated with a reflective neutral density coating, both on the front and back surfaces, denoted as 'opt fnd-40'. This coating is designed to reduce the intensity of light without altering its color, making it ideal for applications where light intensity needs to be controlled.

The filter's geometry is shaped as a thin lens, which is beneficial for applications where a thin, lightweight optical element is required. The filter's current status is 'in stock', as indicated by the 'weblink status' field in the item data.

For more detailed information, including technical specifications and purchasing options, please refer to the vendor's website using the provided weblink.