rmalarz wrote:
Pounder, silver halide crystals within the emulsion are either struck by a photon or not during exposure. If they are, they react with the developing agent. If they aren't they don't. That's pretty digital, on or off.
On the other hand, "digital" cameras start out analog, as they measure the amount of photons striking a photo site. That is, in turn, translated to digital information by the processor in the camera. So, photo sites are measuring quantity. That's analog.
--Bob
Well that's a tough point you bring up. The word "digital" brings up our most common meaning these days. Binary code. Light (photons) striking a silver halide surface is hardly digital in that sense. Having worked with film and in the old fashioned darkrooms for years I don't see that as "digital". Grain in a negative could be considered digital but that's a stretch. What about Kodachrome that had no "grain"? Interesting discussion but I'm still disagreeing with you on film and paper being "digital". I hope other members will weigh in. This is a lot more fun than arguing politics in The Attic.