FSQ-OD40 50.8 x 50.8 mm Absorptive Neutral Density Filter 400-900nm

The FSQ-OD40 is a Neutral Density Filter from the renowned optical components vendor, MKS/Newport. This filter, with a catalog number FSQ-OD40, is specifically designed for use in the 400-900nm wavelength range, making it suitable for a wide array of optical applications.

The filter boasts a rectangular base shape, measuring 50.8 x 50.8 mm, and a thickness of 3 mm, providing a substantial surface area for light absorption. The filter's material ID is UVFS MAL-1965, a detail that may be crucial for integration with existing optical systems.

The FSQ-OD40 filter features a New OD40 coating on both the front and back surfaces, enhancing its light absorption capabilities. The coating is uniformly applied across the entire surface of the filter, ensuring consistent performance.

The filter's geometry and shape are designed to mimic a thin lens, making it compatible with a wide range of optical systems. The filter's dimensions and shape make it a versatile option for various applications.

According to the vendor's website, the FSQ-OD40 filter is currently in stock, indicating its availability for immediate purchase and use. The vendor's website also provides further details and specifications, which may be useful for those considering this filter for their optical systems.