Hehe
You're making a good choice to go with the 13mm lens, I have both and the image quality is significantly better with the 13mm. The 6.5mm vignettes quite a bit, is less sharp and gives a more noisy image (lower aperture I guess), distorsion comes standard with wider angle lenses, no surprise there. I still find it useful to have a wide lens for some things.
Their algorithms are good indeed, it's interesting to see that with thermovision_joeC (tried the first time this morning, hadn't noticed support had been added - had to build a USB cable again, couldn't find the one I'd already made anymore
) the image is "jumpy" - for some reason it seems the whole image jumps by a °C or 2 back and forth between frames giving a flashy unstable image. Either it's a bug or I3 have much better algorithms since neither their phone app nor windows app do that, they're stable as a rock.
You'll typically do an FFC with the supplied lens cap on after power up (and ideally waiting a minute or 2 for thermal stabilization like with other imagers, but not really important if you're not looking for temp readings), then you can basically forget about it at least for minutes. Even without the FFC the image is cleaner than say the Keysight, see below. On both shots the Keysight has just done an FFC, on one the Q1 has had no FFC since power up, on the other the FFC has just been done.
As you can see without an FFC the Q1 is already better - and that's at a significantly narrower span too! What you lose is some temp range, but IMO that's for the better since its thermal resolution seems that much higher thanks to it, and I guess you have enough other choices for high temps
Little video to finish:
https://youtu.be/cUkKr1DuhUgOh, and a little stitched thermal panorama
Sorry in advance for your wallet
P.S. I'd love to see what a V1 puts out...