Thermal imaging cameras have been used by scientists, researchers and R&D specialists for many years in a variety of applications. However, not all thermal cameras are the same, and for some applications, advanced thermal cameras with high speed stop motion capability are required in order to get the most accurate measurements. This application note describes the difference between cooled and uncooled thermal imaging cameras, and when to use them in applications such as industrial R&D, academics and research, and defense and aerospace.