When I took the Level I the rep for Fluke offered me a camera to use for the course. I had already decided on the camera that suited me, as I had been looking for 3 years. Once I was in the course there were several people who said they would have picked another camera after doing some of the materials.
I would say it depends upon how sure you are about the camera. For building diagnostics the TIR1 has been excellent. If I could afford it at the time, I would have gone with the TIR 2FT, which has identical specs, but has the bigger screen, interchangeable lenses and batteries.
Once I get my business rolling I will think about upgrading.
One thing to consider, I really see where the wide angle lens would be extremely useful in building diagnostics in tight locations. So if your considering that, buy the camera that offers that when you purchase, since the lens has to be calibtrated to the camera body.
Hope that helps.
Darrell Paul
Wood Frame Construction Specialist
Level I Thermographer
403-586-1950
www.qstat.ca