Smoke, Snow, fog, and selected elements for example glass and silicon are transparent, when imaging in SWIR. Meaning the atmospheric affect of fog and smoke disappears within the shortwave infrared (SWIR) spectrum. Though capturing pictures during the SWIR lacks the color content with the noticeable location, SWIR photos -which can https://www.mindvision.ltd/Special-Camera/Short-wave-Infrared-Camera.html