[crazygringo]

Surely it can be shielded?

IR and microwave wavelengths are nowhere even close to each other.

The grill in my microwave door lets through visible light. And the electronics already present in my microwave seem just fine.

[ben_w]

Shielding is straightforward; styropyro on YouTube made a ridiculously overpowered oven, 20 kW, was able to film the interior via a small hole, camera was basically fine.

https://youtu.be/mg79n_ndR68?si=F5RTVUWdxglMFm7X

[glitchc]

Wow, interesting

[glitchc]

Can't shield the lens, which would be facing the cavity unobstructed.