Top of the line for the price - ATN OTS-XLT 2.5-10x Thermal Viewer

Being only $700, you get a 17 micron sensor (most are only 12), and a 25mm lens, which is huge considering the price of the device and that the germanium is probably the most expensive component. The screen and sensor has a lower pixel volume then some, but the higher pixel size in the sensor, and the large lens means that the digital zoom can compensate while viewing at a distance. This is a monocular and not just a camera, so it's more designed for range than image quality anyways. Lots of settings to choose from, and you have the ability to focus both the lens and the UI to get everything just right. The frame is nice and rubberized, but I think the unit may be to big for some to hold, although it fits okay in my big hands. It is $200-$300 then the dirt cheap models of other companies, but that extra goes a long way. It was easy to see a vulture flying behind a tree line at easily 400 yards, during the day when there is less contrast between objects and the background.