Archived posting to the Leica Users Group, 2000/04/09
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]> Physics is a discipline that describes, but doesn't really "govern" > anything. Well, not according to the dictionary definitions. Governed is defined as "control, influence or determine, be the predominating influence". Physics is defined as "the science of dealing with the properties of matter and energy". So, given one needs to get the geometries of the diodes smaller in order to pack them more densely, that would, by definition, be governed by physics. Over the past years, in the engineering community, it is routinely discussed that physics has governed the semiconductor market, and allowed higher densities of transistors to be put on the same size piece of silicon...because the transistors are created smaller. > The fact that lenses work, and deliver photons to film, which captures them, > means that the photon density and detector spacing is not a current physical > limitation. I disagree. If the sensor can only be made only so dense with the current process being used, ie, 1200 pixels per inch, then that's the highest density you can have, until a new process is devised that allows them to be packed closer together. If the lense has a "resolution" of, say, 11,500 'DPI' on a 35mm film plane, that is almost 10x what you need for the 1200 PPI sensor, so that lense would be overkill. Point is, the sensor spacing is the physical limitation in being able to get higher density CCDs that would work with your Lietz lenses, and capture (somewhat) the same image quality as your 35mm film can.