Thermal lens Modeled for use in areas like northern Europe, Scandinavia, the Baltics, and Poland, Brings out color contrast in overcast, snow-covered scenes that are dominated by whites and grays found in snowy wooded areas, rocks, and mountains. This lens will help soldiers better see the undulations of snowpack, identify recently covered tracks, estimate distances, and makes man-made structures, vehicles, and people stand out

Revision I-VIS Snowhawk Ballistic Replacement Lens, Umbra,