MAN-52-20 52 mm Dia. Optical Glass Mounted Absorptive Neutral Density Filter 400-700nm

The MAN-52-20 is a Neutral Density Filter, specifically an Absorptive Neutral Density Filter, mounted on optical glass with a 52 mm diameter. This filter is designed to operate within the visible light spectrum, covering wavelengths from 400 to 700nm.

The filter is manufactured by OptoSigma, a renowned vendor in the optical industry, and is identified by the catalog number MAN-52-20. It is available for purchase directly from their website, where it is currently listed as in stock.

The MAN-52-20 features a base shape of a circle, a common geometry in optical filters due to its uniform light distribution. The filter has a thickness of 2 units, which could be millimeters or any other unit of length, as the specific unit is not specified in the item data.

The filter's front and back surfaces are coated with 'opt and-20', a coating type that is not explicitly defined in the item data. However, it can be inferred that this coating provides some form of optical enhancement or protection to the filter.

The filter's shape is described as 'Thin Lens', suggesting that it is designed to minimize optical aberrations and distortions, thereby ensuring high-quality optical performance.