There are uncooled LWIR and SWIR cameras, as well as cooled LWIR, MWIR, and SWIR cameras. But I've never heard of an uncooled MWIR camera. They ALL seem to use a sterling mechanical cooler. Why is this? What is special about MWIR cameras that makes it so they can't be operated in an uncooled mode? And if it is actually possible, are you aware of any MWIR cameras that do so?