Also, when the folks above said "they are all pretty much the same", I'm pretty sure they weren't suggesting to rush into buying a camera without comparing, they meant that the product lines offered by the major manufacturers are similar. Within a product line, you will find a variety of features which actually may end up being important... depends somewhat on your individual application and needs. Some applications need good good measurement field of view (switchyards). Get a distributor to help you. Or ask a little bit at maintenanceforums.com thermography forum. I agree with the others that if you haven't already taken a course, then it would be good to taken one before you buy a camera because the options will become apparent.... you'll have plenty of opportunity to talk about it with others during the course.
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(2B)+(2B)' ?