The GR III is the lightest and most compact camera on this list by a long shot ... III but with a 40mm equiv. lens instead. If you prefer the 'normal' field of view to a wider one, be sure ...

Remember: The longer the lens, the more susceptible you are to camera movement—with really long lenses, even the slightest motion can cause blur. Try to use as fast a shutter speed as possible ...

Effective immediately, the cameras of the ImageIR® series operating in the short-wave infrared range are able to measure objects over very large distances.