[photo-3d] Pixels Pixels

[markaren@xxxxxxxxx]

So how many pixels will equal the look of film? Nobody knows and who
cares? That's like asking which felt tip marker closely resembles
qualities of paint. Let's say it is determined by a greater power that
9-10 megapixels equals film ( I suspect it will be much higher, but
let's say 10 for this example).........it won't happen in a consumer
camera and here's why.
Film has suspended silver halide crystals in random orientation, some
sandwiched together, many overlaps, crystals rotated in different
directions etc. This is why film mfgrs have been able to reduce the
grain ( size of the halides) while maintaining sharpness etc. A digital
camera requires less pixels ( equate pixels to the halide crystals for
this example) because the pixels are not random but are specifically
aligned together for efficiency. As the size of the pixels are reduced
attempting to fit more pixels into the same space, it was discovered
that reducing pixel size reduces light sensitivity. This is not the case
with film. So to produce a digital camera to house a quality 10Mp
chip....the camera will have to be larger than the average SLR, or the
chip quality will suffer.
Mfgrs are so fearful of the size restriction, they must admit they are
not willing to go in this direction. The future of film, at least for
now, looks awefully bright! :-)
                                                Mark Dottle


http://community.webtv.net/markaren/USVIEWSExchangeFolio