> I was curious if anyone has thought of the following way to
>> reduce image noise, in particular noise that comes from an
>> electromagnetic source i.e. not light. The idea is,
>> just cover most of the camera with tinfoil, everything except
>> the lens of course. By this method, the only signal noise
>> that affects the analog sensor elements will be of either
>> internal origin (the circuits) or optical.
>>
>> But will it work? I haven't tried it, since I temporarily don't
>> have a digital camera.
> No, it will not work. A tinfoil hat on the operators head
> might be a more useful idea, though...
It would help if the tinfoil was very thick, say an inch, and deep frozen first before applying it to the camera half an hour before taking a photograph.