The ZWO 1.25″ IR 850nm Pass Filter is suitable for IR sensitive cameras. You don't need to debayer when using this filter with a Color camera such like ASI224MC or ASI185MC. You can use a color camera as a mono camera with this filter, just don't forget to keep the WB_R and WB_B to 50 (no White Balance applied).
A suggested configuration: ASI290MM+850nm IR filter + 2.1mm lens.
Thickness: 1.9-2mm
