Don - last time you did that one behind the stone on a porch column I think you were able to pick up heat. So your model is just as good. What I wish to have is an option to change lenses or zoom. It's too telephoto and I always have to stand far back.
iddee - never retiring. I have fun playing with it at home
Allen - dang is what I said when I saw Don's first thermal images
JP - Too much but it's worth it. Around $3000. I'm not as experienced as you so this helps me minimize the destruction.
If I didn't find them with the thermal imager that day I would have drilled or cut small squares off that stucco wall to locate the bees.
I think it's time to sell my borescope which I've only used twice since I bought it.