13-238 25 mm Dia. Hoya ND-50 Absorptive Neutral Density Filter; OD 0.3 750-1550nm

The 13-238 25 mm Dia. Hoya ND-50 Absorptive Neutral Density Filter is a high-quality optical component designed for use in a wide range of applications. Sourced from the renowned optical vendor Edmund Optics, this filter boasts a catalog number of 13-238 and is available for purchase directly from their website, where it is currently listed as in stock.

This filter is a Neutral Density Filter, a type of optical element that reduces the intensity of incoming light, regardless of its wavelength, without altering its color composition. This makes it an ideal choice for applications where maintaining color fidelity is crucial, such as in photography, cinematography, and scientific research.

The filter features a circular shape, with a diameter of 25 mm and a thickness of 2.5 mm. This compact size and slim profile make it a versatile option for use in various setups, particularly where space is at a premium. The filter is constructed from UVFS Mal- 1965, a material known for its optical clarity and durability.

The 13-238 filter is coated on both the front and back surfaces with EDM 13-220, a specialized coating that enhances its performance and longevity. This coating helps to reduce reflections, increase transmission, and protect the filter from environmental hazards, ensuring optimal performance and a long lifespan.

The filter's geometry is shaped as a Thin Lens, a design that minimizes optical aberrations and distortions, further enhancing its performance and suitability for a wide range of applications. With a wavelength of 588 nm, this filter is well-suited for use in settings where this wavelength is prevalent or of particular interest.