My dentist has one and uses it. Actually my former dentist as I am switching to another one nearer where I live. Anyway last September the dentist took an X-ray picture of my tooth, which was very small, possibly less than a 135 frame IIRC, and just developed it in a couple minutes in one of those dark bags, and it was immediately available for the light table (or should I say the light frame, on the wall). It was really nice to see that analogue technology was so fast and practical. Frankly after seeing that I don't understand how could a dentist want to switch to digital. I had never noticed before that dentists develop X-ray pictures on the spot.