Simply certifying the camera's electronics is compatible with FCC and CE regulations would be a major expense. This assumes the camera would be sold in the US and EU.
Of course, home-made, one-off conversions are completely unregulated.
“Basically, I mean, ah—well, let’s say that for me anyway when a photograph is interesting, it’s interesting because of the kind of photographic problem it states—which has to do with the . . . contest between content and form.