Even modified sensors (removal of the IR sensor filter) barely see above 1000nm, which not anywhere close to what you need for thermal imaging > it would seem

Even modified sensors (removal of the IR sensor filter) barely see above 1000nm, which not anywhere close to what you need for thermal imaging > it would seem a bit weird to me if they just happened to be restricted to exactly the same part of the spectrum as our eyes as a hardware limitation. That's a feature, for the leica m8 sensor "sees" UV and IR, as a result you need to use a UV/IR filter on your lens otherwise you get weird colors and blurrier images (since UV/visible light/IR all focus at different plans) https://www.35mmc.com/14/02/2016/leica-m8-infrared-cut-filter-comparison/ https://www.35mmc.com/14/02/2016/leica-m8-infrared-cut-filte...