84-001 100 x 300 mm Kodak Wratten 2 Neutral Density Color Filter; OD 0.6 400-700nm

The 84-001 is a 100 x 300 mm Kodak Wratten 2 Neutral Density Color Filter, available from the renowned optical components vendor, Edmund Optics. This filter is designed to provide a uniform reduction in light intensity across the visible spectrum, making it ideal for applications where a controlled amount of light is required.

The filter boasts a neutral density of 0.6, which corresponds to a 2-stop reduction in light intensity. This is particularly useful in photography and cinematography, where it allows for wider apertures or slower shutter speeds under bright lighting conditions. The filter's spectral response covers the 400-700nm range, encompassing the entire visible light spectrum.

The filter is made from color glass, a material known for its excellent optical properties. It has a base shape of 100 x 300 mm, making it suitable for use in a variety of optical systems. The filter has a thickness of 0.1 mm, which is thin enough to minimize optical aberrations while still providing robustness and durability.

The filter's front and back surfaces are coated with EDM 53-704, a coating that enhances the filter's performance and durability. This coating helps to reduce surface reflections, improving transmission and reducing the likelihood of flare and ghosting in high-light conditions.

The filter's shape is described as a thin lens, indicating that it has been carefully designed and manufactured to minimize optical aberrations. This makes it suitable for use in high-precision optical systems where distortion and aberration control are critical.