> On 13/10/06, John Francis <[EMAIL PROTECTED]> wrote: > > > My guess would be that we'll begin to see new lenses that communicate > > far more information over the digital signal pin (such as, say, the > > actual aperture the lens is set to; far more accurate than relying > > on the position of a mechanical actuator).
I don't see how that would work. The aperture mechanism is just that; a mechanism. There has to be some coupling to the electronics to create the digital signal. The alleged propensity for mismeasurement (all those inaccurate 35mm bodies for all those years....) seems to be there until some form of totally electronic aperture, er, mechanism is created. It seems to me, looking at opinions of lens types expressed here over the years, that putting the mechanical link to the aperture coupler signaller in the lens (which is what A and later lenses have) creates _less_ reliability than having it in the body. ----------------------------------------- Email sent from www.ntlworld.com Virus-checked using McAfee(R) Software Visit www.ntlworld.com/security for more information -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
