|Anybody have a procedure for using IR Windows already written, that they would be willing to share? We are finally starting to install IR Windows and I have to revise our Thermography procedure to include their use. I don't want to re-invent the wheel and write a procedure if I can "borrow" one of yours. If possible I would like a procedure that includes setting the external optics temperature and how to do it if the camera does not have an external optics option. We currently use Flir cameras (SD Flir, E-4, P595, P640, and the P660. So some have the External optics temperature option and others don't.