GETTING MY COOLED MID-WAVE INFRARED LENS TO WORK

Observe for the technically minded IR shooters: I believe the 665nm conversion used in the vast majority of my exams can be a handy just one because it sits in between the 590nm which tends to be extra forgiving along with the 830nm which tends to be extra unforgiving regarding infrared problems.All three correspond to a selected array of wavelengt