Message text written by INTERNET:[EMAIL PROTECTED] >This brings up a point which I've been wondering about lately.
A digital camera pixel is continuous tone. It measures the _intensity_ of the light that falls on it. As I understand it, a single film "grain" or dye cloud or whatever it is, is a discrete device: either its exposed or its not exposed, and the density of the exposed "grains" control the perceived tone - ie its some kind of a randomly arranged halftone process. If this is true, its little wonder that people say digital files have finer grain than film. And higher perceived detail. Cheers, - Dave< more complicated that this. the film texture that we can see with the eye or moderate magnification and commonly call grain is clumping of a lot of grains together or dye clouds that result from clumps of grain after the silver has been replaced with dyes. these clumps are basically a random halftone. the clumps or clouds in turn are grown from the actual silver halide crystals forming the real grain that are exposed and turned on or off. the clumps or clouds are much larger than the actual film grain. Herb....
