14NDF-30-1 12.7 mm Dia. Unmounted Absorptive Neutral Density Filter; OD 0.5 400-700nm

This is the 14NDF-30-1, a 12.7 mm diameter unmounted absorptive neutral density filter, specifically designed for use in the 400-700nm wavelength range. The filter is sourced from Standa, a reputable vendor known for their high-quality optical elements.

The filter is of the Neutral Density type, which means it reduces the intensity of incident light without altering its color composition. This is achieved through a front and back coating of 'sta 14ndf-0.5', providing an Optical Density (OD) of 0.5. This OD corresponds to a transmission of approximately 63%, making it suitable for applications where moderate light reduction is required.

The filter is shaped as a thin lens, with a thickness of 3mm, and is made from UVFS Mal-1965 material. This material is known for its excellent optical properties and durability, ensuring the filter maintains its performance over time.

The filter's geometry, including its 12.7mm diameter, is designed to fit into most standard optical systems. However, it is unmounted, meaning it does not come with any housing or mounting hardware. This allows for flexibility in integration, but users should ensure they have appropriate mounting solutions in place.

According to the vendor's website, this filter is currently in stock, and more information can be found at the provided weblink.