ND090-37 | ND090 Neutral Density Filter - Absorptive 12.5% Transmission

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The MidOpt ND090-37 is an absorptive neutral-density filter with an optical density of 0.9, or an average transmission of 12.5% across the visible spectrum. These filters have iden tical male and female threads on both ends, allowing them to be stacked with other ND filters to achieve various optical densities. For example, the result from stacking two ND090 filters together would be almost identical to one (ND180) filter – transmitting approximately 1.6% of visible light. All MidOpt filters can also be purchased unmounted and in custom dimensions upon request from Machine Vision Direct. Technical Specifications Specifications + Useful Range Min 425 nm Useful Range Max 675 nm Adhesive Backed Yes Tolerance 1.5 % Surface Quality (Scratch-Dig) 40-20 Substrate Material Colored Glass Filter Diameter M37 x P0.75 Product Availability + Standard Lead Time 15 Days Stock Location Built to Order Product Lifecycle Active Show more