On Mar 27, 2007, at 5:17 PM, Igor Roshchin wrote: > I am glad to hear that it is the case (as seen in the metadata), > as in principle, it does not have to be the case: even though ISO > numbers are defined in 1/3-stop increments, I suspect, in the TAv mode > on k10D, the ISO cannot be changed in 1/3 EV steps, can it? > (and 1/2 EV steps are out of the question as well).
It can. There's a custom function which instructs the ISO settings to follow the EV Compensation settings granularity. And you can set the camera to adjust EV Compensation either in half stops or third stop increments. > ...Sorry for going into deep technical details. I am just curious how > things work. How it works ... what it actually does ... is conjectural at best. The EV Compensation, ISO and aperture settings can all be made in third stop steps, and the camera reports settings with that resolution. Whether it can actually use a finer granularity underneath those numbers is unknowable without decompiling the real time OS in the camera and understanding how it functions. (I had the Canon 10D ... it also could only make settings and report settings in 1/2 or 1/3 stop increments... whether it did anything finer grained I couldn't tell you.) Godfrey -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
