This is a 12.5 mm diameter Non-Reflective Neutral Density Filter, catalog number 63-381, sourced from the renowned optical vendor, Edmund Optics. The filter is designed to reduce light intensity without altering the color composition of the incident light, making it an ideal choice for various applications where controlled light exposure is required.
The filter boasts a neutral density of 1.3, which signifies a reduction of 40% of the light passing through it. This specific model is designed for the Near-Infrared (NIR) spectrum, with a wavelength range of 400-700nm, making it suitable for applications that involve NIR light.
The filter is constructed with a Thin Lens shape, featuring a thickness of 1.5mm. This design ensures minimal distortion and maintains the integrity of the light path. The front and back surfaces of the filter are coated with "edm 63-381", a non-reflective coating that reduces surface reflections, further enhancing its performance in high-intensity light situations.
For more detailed information, including current stock status and direct purchase links, users can refer to the provided weblink: https://www.edmundoptics.com/p/od-13-vis-125mm-dia-non-reflective-nd-filter/17992/.