How strong are acetone fumes

I wonder how this took in real time

Depends... How much acetone is available? How big is the chamber? What is the temperature? What is the partial pressure of acetone vapor in the chamber? What is the camera body made of? (Likely to be either polystyrene or poly(acrylonitrile-butadiene-styrene); both of which are soluble in acetone.)

But what happened to the camera that was taking the footage?

This gives hope to jet fuel melting steel beams.

Only does this to certain plastics :( wow look how strong this cup of tea is it completely dissolves this sugar cube