Mark Roberts wrote:
In the case of stop-down metering in the *ist-D I suspect that money wasn't as much of a factor as time. Even with the lack of the aperture simulator, stop-down metering certainly could have been implemented in software (using the DOF preview) but would have required more software coding, and the attendant debugging and hardware testing. Given the lateness of the DSLR project as a whole (just look at how much complaining there still is about having to wait) it was a predictable corner to cut simply to get the camera to market quicker.
-- graywolf http://graywolfphoto.com

