# D19x1_NIR_SCREWIN - Screw in low profile Longpass NIR 850nm filter

Low profile screw-in NIR filter is designed for CS and C-mount cameras. Filter can be used with most lenses without disassembling camera or lens.

[![IMG_4691__s-1000x800.jpg](https://wiki.kurokesu.com/uploads/images/gallery/2022-01/scaled-1680-/img-4691-s-1000x800.jpg)](https://wiki.kurokesu.com/uploads/images/gallery/2022-01/img-4691-s-1000x800.jpg)

### Dimensions

- Diameter: 25.4+/-0.1mm
- Thickness: 4.5+/-0.1mm

[![screw_in_filter-1000x800.png](https://wiki.kurokesu.com/uploads/images/gallery/2022-01/scaled-1680-/screw-in-filter-1000x800.png)](https://wiki.kurokesu.com/uploads/images/gallery/2022-01/screw-in-filter-1000x800.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)

### Tool

[Knippex **48 11 J1** Precision Circlip Pliers](https://www.knipex.com/products/circlip-pliers/precision-circlip-pliers-for-internal-circlips-in-bore-holes/precision-circlip-pliersfor-internal-circlips-bore-holes/4811J1) are recommended to install and remove filter.

- Tips (diameter): Ø 1.3 mm
- Size of bore: Ø 12 – 25 mm
- EAN: 4003773048527
- Dimensions: 140 x 48 x 12 mm
- <div><div><div>Weight: 105 g</div></div></div>

[![IMG_4651__s_wiki.jpg](https://wiki.kurokesu.com/uploads/images/gallery/2022-01/scaled-1680-/img-4651-s-wiki.jpg)](https://wiki.kurokesu.com/uploads/images/gallery/2022-01/img-4651-s-wiki.jpg)