NX Series Neutral Density Filters

About Midwest Optical Systems Inc. (MidOpt)

• Type: Filters
• Filter Category: Neutral Density Filter
• Applications: Aerospace, Astronomy, Biomedical/Medical, Communications, Industrial, Military, Scientific Research, Other
• Useful Range: 400-2000nm
• Optical Density: 0.3-1.2
• Average Transmission: 6.25-50%
• Surface Quality: 40/20

NX Series Neutral Density (ND) Filters are designed for smooth, consistent light attenuation across the full 400–2000nm spectrum. With transmission options of 6.25%, 12.5%, 25% and 50%, the NX Series offers dependable performance for visible (VIS), near-infrared (NIR) and short-wave infrared (SWIR) imaging – ideal for applications that require longer exposures, reduced depth of field or broadband illumination control. Built on precision-polished B270 glass and coated with a proprietary non-reflective finish, NX filters deliver excellent image quality, uniform thickness and a neutral gray/black appearance that reduces stray reflections. NX Series filters are housed in a rugged metal ring with matching male and female threads, making them easy to stack for customized attenuation. NX filters are also available as custom-cut pieces up to 165mm square for integration with broadband light sources or large-format optics.