Figure 3
From: Continuous monitoring of Hawaiian volcanoes with thermal cameras

Thermal camera and field deployment. a) A Mikron M7500L thermal camera with a 53° wide lens. The camera is protected by a custom-made enclosure made from a Pelican case. The camera looks through a germanium window attached to the front of the enclosure. b) Example deployment, showing the PTcam observing an active perched lava lake in Pu‘u ‘Ō‘ō crater in July 2011. Compare this view to Figure 9b.