13-161 12.5 mm Dia. Hoya ND-006 Absorptive Neutral Density Filter; OD 3.5 600-1050nm

This is the 13-161 12.5 mm Dia. Hoya ND-006 Absorptive Neutral Density Filter, a high-quality optical component designed for a wide range of applications. Sourced from the renowned vendor Edmund Optics, this filter is part of their extensive catalog, known for its reliability and performance.

The filter is a Neutral Density (ND) type, which means it reduces the intensity of all wavelengths of light equally, providing a uniform attenuation without affecting the color balance. This is particularly useful in applications where controlling the light intensity is crucial, such as in photography, cinematography, or scientific research.

The filter has a diameter of 12.5 mm and a thickness of 2.5 mm, making it suitable for use with various optical systems. It features a Circular shape, a common form factor for ease of use and compatibility with different setups.

The material of the filter is identified as "uvfs mal- 1965", a specific type of optical material known for its optical properties. The filter is designed to work optimally at a wavelength of 900 nm, making it suitable for near-infrared applications.

The filter is coated on both sides with the "edm 13-161" coating, which enhances its performance and durability. This coating helps to reduce reflections, increase transmission, and protect the filter from environmental factors.

The filter's shape is defined as "Thin Lens", indicating its ability to focus light. This can be beneficial in certain applications where focusing or collimating light is required.