Bob Turner wrote:
> This got me to thinking 'What is the size of the chip in my Canon FS2710
> film scanner?'. Without checking the specs, would this chip not be
adaptable
> tp an EOS body?
Sorry Bob, but that won't work.
The sensor in a film scanner moves over the film, like the sensor in a
flatbed scanner moves over the paper. It's 24 mm wide and travels 36 mm.
Even if you managed to build the sensor and the mechanism to move it into
the camera (there are digital camera backs for medium format that work this
way, so I suppose it could be done), I doubt i'd be very useable. The
sensor's surface area is several thousand times smaller then that of a film
or square sensor, so exposures need to be that much longer. The sensor
itself is probably quite insensitive, though in a film scanner that wouldn't
be a problem because of the light source.
All this reminds me of some experimenting I did 15 years ago. I built an
expansion board for my C64 computer, with a single ram chip on it. I removed
the top of the chip, and replaced it with aluminum foil with a tiny hole in
it. Then a program writes all 1's to the ram chip, waits a few seconds, then
reads back the ram chip.
Where the light struck, the 1's are changed to 0's, and you end up with a
0.001 megapixel black and white (no grayscale) picture that was just barely
recognizable.
It died after a few weeks, probably because the unprotected ram chip got
destroyed by dust. Those 1kb ram chips were expensive, so that was the end
of the experiment.
Martijn
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