uit160s macro lens

Macro lens for thermal camera uit160s , diameter of lens is 19mm and 20mm , i post the STL files and the .f3d file , for customisation.
I make a video youtube for look the result.
https://youtu.be/b1HFTw-RHBY

I will show you how to add a macro lens to the thermal camera the uti160s model of unit. I created a 3d model in fusion360 for this purpose. and I'll show you three lenses with different focal lengths. from the one with the least zoom to the one with the most zoom. I bought these lenses on Aliexpress. they are for laser and work very well for thermal cameras.