On Sat, Sep 16, 2006 at 05:45:09PM -0400, graywolf wrote: > Can you provide a reference on that? A quick goggle search* finds > nothing the contradicts my explanation. Your comment may be accurate on > the quantum level but I do not think we can quite apply it to current > image sensors, but would be interested in seeing something about where > you are getting that from. Photons, like all quantum particles, are very > slippery critters and probably act that way, but I do not know of any > photo diode that gives out a quantized signal --in a macro world sense.
The point is that you're not in a macro world. The change in voltage level that would be indicated by the smallest possible change in a 22-bit number is well below the change in voltage that would be caused by the presence of just one additional electron in the sensor site (by a couple of orders of magnitude). You're trying to measure an "analog" quantity to a precision that puts you firmly in the quantum domain. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
