Op Thu, 14 Sep 2006 12:23:48 +0200 schreef Shel Belinkoff <[EMAIL PROTECTED]>:
> I still don't know what an aperture simulator is, With pre-A lenses, the lens determines how much it is stopped down. In order to measure exposure wide open, the body must know how much the lens will stop down from wide open during the exposure. The aperture simulator (Bojidar calls it the stop-down coupler) is the body-half of a set of two connecting pins (the one on the lens is called the stop-down indicator) made to transmit this information. With lenses in A-mode, the body determines how much the lens is stopped down, so the two pins are not needed. Hope this helps, for a more comprehensive explanantion, read the pages on the K-mount evolution on the KMP. -- Regards, Lucas -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
