On Sun, Oct 15, 2006 at 12:32:57AM +0200, Thibouille wrote: > John the sensor does NOT output bits, a CCD only outputs analog signal > and thiat is why 22 bit capture is important. Even if tyou conver down > to 16/12/8 bits later.
I'm perfectly aware of that. But the point is that 22 bits is far more than you need - if you scale the 22-bit quantity to use all the bits then a change of a single electron in the CCD prior to digitisation will change the output value by something like 50 (and that's using the most generous estimates of the technology). A 22-bit quantity is 'measuring' to a precision that doesn't exist; at that level of detail the voltage isn't a smooth, continuous curve. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
