# LP0508-P0051 - Longpass NIR 850nm filter

Longpass filter is manufactured for C1, C1 PRO, C920, and Brio reworked cameras but can be used for all other applications (like astronomy). This filter blocks visible light and lets the IR portion of the spectrum reach the sensor.

### Dimensions

- Diameter: 19.0+/-0.1mm
- Thickness: 1.0+/-0.1mm

[![dimensions_d19_w.png](https://wiki.kurokesu.com/uploads/images/gallery/2022-01/scaled-1680-/dimensions-d19-w.png)](https://wiki.kurokesu.com/uploads/images/gallery/2022-01/dimensions-d19-w.png)

### Specifications

- Wavelength: >850nm
- Coating: AR (install reflective side face towards object)
- Transmittance(avg) > 80%@850-2200nm
- OD value > 3.5@200-800nm

[![LP0508-P0051.png](https://wiki.kurokesu.com/uploads/images/gallery/2022-01/scaled-1680-/lp0508-p0051.png)](https://wiki.kurokesu.com/uploads/images/gallery/2022-01/lp0508-p0051.png)