Fotga 37mm Infrared Infra-red IR Pass X-Ray 650nm Lens Filter for Sony Nikon Canon Pentax Olympus Leica Samsung Fujifilm Dslr Camera

In which ways the infrared filter will be used? 1.Archaeology,Military,Police,Medical science,and detective work. Infrared filter allow normally invisible stains and modified items visible. 2.Plant vegetation & Landscape photography. It